[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Changes from v6:
Modified register definitions according to the existing ones.
Changed default PHY clk selection for SoCs.
Improved binding text and rebased to the latest usb-next.

Changes from v5:
Moved clk_get() to driver's probe function. Now reference clock frequency
selection value is stored in samsung_usbphy structure for later use. Used
IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().

Changes from v4:
Moved header file contents to driver's source file
Removed unnecessary print message from driver's probe function
Dropped the Free Software Foundation address from the header
Changed the platform data code to use __initdata

Changes from v3:
Replaced susbsys_initcall()/module_exit() by module_platform_driver().
Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
is registered
Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.

Changes from v2:
Changed the driver filenames to samsung-usbphy
Changed 's3c' to 'samsung' for platform device as well as platform data
Moved platform data structure to a separate file
Rectified coding style related errors

Changes from v1:
Rebased patches to latest usb-next branch
Changed the name 'sec_usbphy' to 'samsung_usbphy'

This patch set introduces a phy driver for samsung SoCs. It uses the existing
transceiver infrastructure to provide phy control functions. Use of this driver
can be extended for usb host phy as well. Over the period of time all the phy
related code for most of the samsung SoCs can be integrated here.
Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
when they start supporting this phy driver. 
This driver is tested with smdk6410 and Exynos4210(with DT).

Praveen Paneri (5):
  usb: phy: samsung: Introducing usb phy driver for hsotg
  usb: s3c-hsotg: Adding phy driver support
  ARM: S3C64XX: Removing old phy setup code
  ARM: S3C64XX: Enabling samsung-usbphy driver
  ARM: Exynos4210: Enabling samsung-usbphy driver

 .../devicetree/bindings/usb/samsung-usbphy.txt     |   11 +
 arch/arm/boot/dts/exynos4210-smdkv310.dts          |    5 +
 arch/arm/mach-exynos/include/mach/map.h            |    1 +
 arch/arm/mach-exynos/mach-exynos4-dt.c             |    8 +
 arch/arm/mach-exynos/setup-usb-phy.c               |   13 +
 arch/arm/mach-s3c64xx/include/mach/map.h           |    2 +
 arch/arm/mach-s3c64xx/mach-crag6410.c              |   10 +-
 arch/arm/mach-s3c64xx/mach-smartq.c                |   11 +-
 arch/arm/mach-s3c64xx/mach-smdk6410.c              |   11 +-
 arch/arm/mach-s3c64xx/setup-usb-phy.c              |   79 +----
 arch/arm/plat-samsung/devs.c                       |   28 ++
 arch/arm/plat-samsung/include/plat/devs.h          |    1 +
 arch/arm/plat-samsung/include/plat/usb-phy.h       |    1 +
 drivers/usb/gadget/s3c-hsotg.c                     |   37 ++-
 drivers/usb/phy/Kconfig                            |    8 +
 drivers/usb/phy/Makefile                           |    1 +
 drivers/usb/phy/samsung-usbphy.c                   |  360 ++++++++++++++++++++
 include/linux/platform_data/samsung-usbphy.h       |   27 ++
 18 files changed, 523 insertions(+), 91 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/samsung-usbphy.txt
 create mode 100644 drivers/usb/phy/samsung-usbphy.c
 create mode 100644 include/linux/platform_data/samsung-usbphy.h

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[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Changes from v6:
Modified register definitions according to the existing ones.
Changed default PHY clk selection for SoCs.
Improved binding text and rebased to the latest usb-next.

Changes from v5:
Moved clk_get() to driver's probe function. Now reference clock frequency
selection value is stored in samsung_usbphy structure for later use. Used
IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().

Changes from v4:
Moved header file contents to driver's source file
Removed unnecessary print message from driver's probe function
Dropped the Free Software Foundation address from the header
Changed the platform data code to use __initdata

Changes from v3:
Replaced susbsys_initcall()/module_exit() by module_platform_driver().
Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
is registered
Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.

Changes from v2:
Changed the driver filenames to samsung-usbphy
Changed 's3c' to 'samsung' for platform device as well as platform data
Moved platform data structure to a separate file
Rectified coding style related errors

Changes from v1:
Rebased patches to latest usb-next branch
Changed the name 'sec_usbphy' to 'samsung_usbphy'

This patch set introduces a phy driver for samsung SoCs. It uses the existing
transceiver infrastructure to provide phy control functions. Use of this driver
can be extended for usb host phy as well. Over the period of time all the phy
related code for most of the samsung SoCs can be integrated here.
Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
when they start supporting this phy driver. 
This driver is tested with smdk6410 and Exynos4210(with DT).

Praveen Paneri (5):
  usb: phy: samsung: Introducing usb phy driver for hsotg
  usb: s3c-hsotg: Adding phy driver support
  ARM: S3C64XX: Removing old phy setup code
  ARM: S3C64XX: Enabling samsung-usbphy driver
  ARM: Exynos4210: Enabling samsung-usbphy driver

 .../devicetree/bindings/usb/samsung-usbphy.txt     |   11 +
 arch/arm/boot/dts/exynos4210-smdkv310.dts          |    5 +
 arch/arm/mach-exynos/include/mach/map.h            |    1 +
 arch/arm/mach-exynos/mach-exynos4-dt.c             |    8 +
 arch/arm/mach-exynos/setup-usb-phy.c               |   13 +
 arch/arm/mach-s3c64xx/include/mach/map.h           |    2 +
 arch/arm/mach-s3c64xx/mach-crag6410.c              |   10 +-
 arch/arm/mach-s3c64xx/mach-smartq.c                |   11 +-
 arch/arm/mach-s3c64xx/mach-smdk6410.c              |   11 +-
 arch/arm/mach-s3c64xx/setup-usb-phy.c              |   79 +----
 arch/arm/plat-samsung/devs.c                       |   28 ++
 arch/arm/plat-samsung/include/plat/devs.h          |    1 +
 arch/arm/plat-samsung/include/plat/usb-phy.h       |    1 +
 drivers/usb/gadget/s3c-hsotg.c                     |   37 ++-
 drivers/usb/phy/Kconfig                            |    8 +
 drivers/usb/phy/Makefile                           |    1 +
 drivers/usb/phy/samsung-usbphy.c                   |  360 ++++++++++++++++++++
 include/linux/platform_data/samsung-usbphy.h       |   27 ++
 18 files changed, 523 insertions(+), 91 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/samsung-usbphy.txt
 create mode 100644 drivers/usb/phy/samsung-usbphy.c
 create mode 100644 include/linux/platform_data/samsung-usbphy.h

[PATCH v7 1/5] usb: phy: samsung: Introducing usb phy driver for hsotg

[Praveen Paneri]

This driver uses usb phy framework to interact with s3c-hsotg. Supports
phy_init and phy_shutdown functions to enable/disable usb phy. Support
will be extended to host controllers and more Samsung SoCs.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 .../devicetree/bindings/usb/samsung-usbphy.txt     |   11 +
 drivers/usb/phy/Kconfig                            |    8 +
 drivers/usb/phy/Makefile                           |    1 +
 drivers/usb/phy/samsung-usbphy.c                   |  360 ++++++++++++++++++++
 include/linux/platform_data/samsung-usbphy.h       |   27 ++
 5 files changed, 407 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/samsung-usbphy.txt
 create mode 100644 drivers/usb/phy/samsung-usbphy.c
 create mode 100644 include/linux/platform_data/samsung-usbphy.h

diff --git a/Documentation/devicetree/bindings/usb/samsung-usbphy.txt b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
new file mode 100644
index 0000000..7b26e2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
@@ -0,0 +1,11 @@
+* Samsung's usb phy transceiver
+
+The Samsung's phy transceiver is used for controlling usb otg phy for
+s3c-hsotg usb device controller.
+TODO: Adding the PHY binding with controller(s) according to the under
+developement generic PHY driver.
+
+Required properties:
+- compatible : should be "samsung,exynos4210-usbphy"
+- reg : base physical address of the phy registers and length of memory mapped
+	region.
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 63c339b..313685f 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -32,3 +32,11 @@ config MV_U3D_PHY
 	help
 	  Enable this to support Marvell USB 3.0 phy controller for Marvell
 	  SoC.
+
+config SAMSUNG_USBPHY
+	bool "Samsung USB PHY controller Driver"
+	depends on USB_S3C_HSOTG
+	select USB_OTG_UTILS
+	help
+	  Enable this to support Samsung USB phy controller for samsung
+	  SoCs.
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index b069f29..55dcfc1 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_OMAP_USB2)			+= omap-usb2.o
 obj-$(CONFIG_USB_ISP1301)		+= isp1301.o
 obj-$(CONFIG_MV_U3D_PHY)		+= mv_u3d_phy.o
 obj-$(CONFIG_USB_EHCI_TEGRA)	+= tegra_usb_phy.o
+obj-$(CONFIG_SAMSUNG_USBPHY)		+= samsung-usbphy.o
diff --git a/drivers/usb/phy/samsung-usbphy.c b/drivers/usb/phy/samsung-usbphy.c
new file mode 100644
index 0000000..3c84aab
--- /dev/null
+++ b/drivers/usb/phy/samsung-usbphy.c
@@ -0,0 +1,360 @@
+/* linux/drivers/usb/phy/samsung-usbphy.c
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com
+ *
+ * Author: Praveen Paneri <p.paneri@samsung.com>
+ *
+ * Samsung USB2.0 High-speed OTG transceiver, talks to S3C HS OTG controller
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/usb/otg.h>
+#include <linux/platform_data/samsung-usbphy.h>
+
+/* Register definitions */
+
+#define SAMSUNG_PHYPWR				(0x00)
+
+#define PHYPWR_NORMAL_MASK			(0x19 << 0)
+#define PHYPWR_OTG_DISABLE			(0x1 << 4)
+#define PHYPWR_ANALOG_POWERDOWN			(0x1 << 3)
+#define PHYPWR_FORCE_SUSPEND			(0x1 << 1)
+/* For Exynos4 */
+#define PHYPWR_NORMAL_MASK_PHY0			(0x39 << 0)
+#define PHYPWR_SLEEP_PHY0			(0x1 << 5)
+
+#define SAMSUNG_PHYCLK				(0x04)
+
+#define PHYCLK_MODE_USB11			(0x1 << 6)
+#define PHYCLK_EXT_OSC				(0x1 << 5)
+#define PHYCLK_COMMON_ON_N			(0x1 << 4)
+#define PHYCLK_ID_PULL				(0x1 << 2)
+#define PHYCLK_CLKSEL_MASK			(0x3 << 0)
+#define PHYCLK_CLKSEL_48M			(0x0 << 0)
+#define PHYCLK_CLKSEL_12M			(0x2 << 0)
+#define PHYCLK_CLKSEL_24M			(0x3 << 0)
+
+#define SAMSUNG_RSTCON				(0x08)
+
+#define RSTCON_PHYLINK_SWRST			(0x1 << 2)
+#define RSTCON_HLINK_SWRST			(0x1 << 1)
+#define RSTCON_SWRST				(0x1 << 0)
+
+#ifndef MHZ
+#define MHZ (1000*1000)
+#endif
+
+enum samsung_cpu_type {
+	TYPE_S3C64XX,
+	TYPE_EXYNOS4210,
+};
+
+/*
+ * struct samsung_usbphy - transceiver driver state
+ * @phy: transceiver structure
+ * @plat: platform data
+ * @dev: The parent device supplied to the probe function
+ * @clk: usb phy clock
+ * @regs: usb phy register memory base
+ * @ref_clk_freq: reference clock frequency selection
+ * @cpu_type: machine identifier
+ */
+struct samsung_usbphy {
+	struct usb_phy	phy;
+	struct samsung_usbphy_data *plat;
+	struct device	*dev;
+	struct clk	*clk;
+	void __iomem	*regs;
+	int		ref_clk_freq;
+	int		cpu_type;
+};
+
+#define phy_to_sphy(x)		container_of((x), struct samsung_usbphy, phy)
+
+/*
+ * Returns reference clock frequency selection value
+ */
+static int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy)
+{
+	struct clk *ref_clk;
+	int refclk_freq = 0;
+
+	ref_clk = clk_get(sphy->dev, "xusbxti");
+	if (IS_ERR(ref_clk)) {
+		dev_err(sphy->dev, "Failed to get reference clock\n");
+		return PTR_ERR(ref_clk);
+	}
+
+	switch (clk_get_rate(ref_clk)) {
+	case 12 * MHZ:
+		refclk_freq = PHYCLK_CLKSEL_12M;
+		break;
+	case 24 * MHZ:
+		refclk_freq = PHYCLK_CLKSEL_24M;
+		break;
+	case 48 * MHZ:
+		refclk_freq = PHYCLK_CLKSEL_48M;
+		break;
+	default:
+		if (sphy->cpu_type == TYPE_S3C64XX)
+			refclk_freq = PHYCLK_CLKSEL_48M;
+		else
+			refclk_freq = PHYCLK_CLKSEL_24M;
+		break;
+	}
+	clk_put(ref_clk);
+
+	return refclk_freq;
+}
+
+static void samsung_usbphy_enable(struct samsung_usbphy *sphy)
+{
+	void __iomem *regs = sphy->regs;
+	u32 phypwr;
+	u32 phyclk;
+	u32 rstcon;
+
+	/* set clock frequency for PLL */
+	phyclk = sphy->ref_clk_freq;
+	phypwr = readl(regs + SAMSUNG_PHYPWR);
+	rstcon = readl(regs + SAMSUNG_RSTCON);
+
+	switch (sphy->cpu_type) {
+	case TYPE_S3C64XX:
+		phyclk &= ~PHYCLK_COMMON_ON_N;
+		phypwr &= ~PHYPWR_NORMAL_MASK;
+		rstcon |= RSTCON_SWRST;
+		break;
+	case TYPE_EXYNOS4210:
+		phypwr &= ~PHYPWR_NORMAL_MASK_PHY0;
+		rstcon |= RSTCON_SWRST;
+	default:
+		break;
+	}
+
+	writel(phyclk, regs + SAMSUNG_PHYCLK);
+	/* set to normal of PHY0 */
+	writel(phypwr, regs + SAMSUNG_PHYPWR);
+	/* reset all ports of PHY and Link */
+	writel(rstcon, regs + SAMSUNG_RSTCON);
+	udelay(10);
+	rstcon &= ~RSTCON_SWRST;
+	writel(rstcon, regs + SAMSUNG_RSTCON);
+}
+
+static void samsung_usbphy_disable(struct samsung_usbphy *sphy)
+{
+	void __iomem *regs = sphy->regs;
+	u32 phypwr;
+
+	phypwr = readl(regs + SAMSUNG_PHYPWR);
+
+	switch (sphy->cpu_type) {
+	case TYPE_S3C64XX:
+		phypwr |= PHYPWR_NORMAL_MASK;
+		break;
+	case TYPE_EXYNOS4210:
+		phypwr |= PHYPWR_NORMAL_MASK_PHY0;
+	default:
+		break;
+	}
+
+	/* unset to normal of PHY0 */
+	writel(phypwr, regs + SAMSUNG_PHYPWR);
+}
+
+/*
+ * The function passed to the usb driver for phy initialization
+ */
+static int samsung_usbphy_init(struct usb_phy *phy)
+{
+	struct samsung_usbphy *sphy;
+	int ret = 0;
+
+	sphy = phy_to_sphy(phy);
+
+	/* Enable the phy clock */
+	ret = clk_prepare_enable(sphy->clk);
+	if (ret) {
+		dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
+		return ret;
+	}
+
+	/* Disable phy isolation */
+	if (sphy->plat && sphy->plat->pmu_isolation)
+		sphy->plat->pmu_isolation(false);
+
+	/* Initialize usb phy registers */
+	samsung_usbphy_enable(sphy);
+
+	/* Disable the phy clock */
+	clk_disable_unprepare(sphy->clk);
+	return ret;
+}
+
+/*
+ * The function passed to the usb driver for phy shutdown
+ */
+static void samsung_usbphy_shutdown(struct usb_phy *phy)
+{
+	struct samsung_usbphy *sphy;
+
+	sphy = phy_to_sphy(phy);
+
+	if (clk_prepare_enable(sphy->clk)) {
+		dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
+		return;
+	}
+
+	/* De-initialize usb phy registers */
+	samsung_usbphy_disable(sphy);
+
+	/* Enable phy isolation */
+	if (sphy->plat && sphy->plat->pmu_isolation)
+		sphy->plat->pmu_isolation(true);
+
+	clk_disable_unprepare(sphy->clk);
+}
+
+static const struct of_device_id samsung_usbphy_dt_match[];
+
+static inline int samsung_usbphy_get_driver_data(struct platform_device *pdev)
+{
+	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
+		int data;
+		const struct of_device_id *match;
+		match = of_match_node(samsung_usbphy_dt_match,
+							pdev->dev.of_node);
+		data = (int) match->data;
+		return data;
+	}
+
+	return platform_get_device_id(pdev)->driver_data;
+}
+
+static int __devinit samsung_usbphy_probe(struct platform_device *pdev)
+{
+	struct samsung_usbphy *sphy;
+	struct samsung_usbphy_data *pdata;
+	struct device *dev = &pdev->dev;
+	struct resource *phy_mem;
+	void __iomem	*phy_base;
+	struct clk *clk;
+	int	ret = 0;
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_err(&pdev->dev, "%s: no platform data defined\n", __func__);
+		return -EINVAL;
+	}
+
+	phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!phy_mem) {
+		dev_err(dev, "%s: missing mem resource\n", __func__);
+		return -ENODEV;
+	}
+
+	phy_base = devm_request_and_ioremap(dev, phy_mem);
+	if (!phy_base) {
+		dev_err(dev, "%s: register mapping failed\n", __func__);
+		return -ENXIO;
+	}
+
+	sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL);
+	if (!sphy)
+		return -ENOMEM;
+
+	clk = devm_clk_get(dev, "otg");
+	if (IS_ERR(clk)) {
+		dev_err(dev, "Failed to get otg clock\n");
+		return PTR_ERR(clk);
+	}
+
+	sphy->dev		= &pdev->dev;
+	sphy->plat		= pdata;
+	sphy->regs		= phy_base;
+	sphy->clk		= clk;
+	sphy->phy.dev		= sphy->dev;
+	sphy->phy.label		= "samsung-usbphy";
+	sphy->phy.init		= samsung_usbphy_init;
+	sphy->phy.shutdown	= samsung_usbphy_shutdown;
+	sphy->cpu_type		= samsung_usbphy_get_driver_data(pdev);
+	sphy->ref_clk_freq	= samsung_usbphy_get_refclk_freq(sphy);
+
+	platform_set_drvdata(pdev, sphy);
+
+	ret = usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2);
+	return ret;
+}
+
+static int __exit samsung_usbphy_remove(struct platform_device *pdev)
+{
+	struct samsung_usbphy *sphy = platform_get_drvdata(pdev);
+
+	usb_remove_phy(&sphy->phy);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id samsung_usbphy_dt_match[] = {
+	{
+		.compatible = "samsung,s3c64xx-usbphy",
+		.data = (void *)TYPE_S3C64XX,
+	}, {
+		.compatible = "samsung,exynos4210-usbphy",
+		.data = (void *)TYPE_EXYNOS4210,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match);
+#else
+#define samsung_usbphy_dt_match NULL
+#endif
+
+static struct platform_device_id samsung_usbphy_driver_ids[] = {
+	{
+		.name		= "s3c64xx-usbphy",
+		.driver_data	= TYPE_S3C64XX,
+	}, {
+		.name		= "exynos4210-usbphy",
+		.driver_data	= TYPE_EXYNOS4210,
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids);
+
+static struct platform_driver samsung_usbphy_driver = {
+	.probe		= samsung_usbphy_probe,
+	.remove		= __devexit_p(samsung_usbphy_remove),
+	.id_table	= samsung_usbphy_driver_ids,
+	.driver		= {
+		.name	= "samsung-usbphy",
+		.owner	= THIS_MODULE,
+		.of_match_table = samsung_usbphy_dt_match,
+	},
+};
+
+module_platform_driver(samsung_usbphy_driver);
+
+MODULE_DESCRIPTION("Samsung USB phy controller");
+MODULE_AUTHOR("Praveen Paneri <p.paneri@samsung.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:samsung-usbphy");
diff --git a/include/linux/platform_data/samsung-usbphy.h b/include/linux/platform_data/samsung-usbphy.h
new file mode 100644
index 0000000..1bd24cb
--- /dev/null
+++ b/include/linux/platform_data/samsung-usbphy.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ *		http://www.samsung.com/
+ * Author: Praveen Paneri <p.paneri@samsung.com>
+ *
+ * Defines platform data for samsung usb phy driver.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __SAMSUNG_USBPHY_PLATFORM_H
+#define __SAMSUNG_USBPHY_PLATFORM_H
+
+/**
+ * samsung_usbphy_data - Platform data for USB PHY driver.
+ * @pmu_isolation: Function to control usb phy isolation in PMU.
+ */
+struct samsung_usbphy_data {
+	void (*pmu_isolation)(int on);
+};
+
+extern void samsung_usbphy_set_pdata(struct samsung_usbphy_data *pd);
+
+#endif /* __SAMSUNG_USBPHY_PLATFORM_H */
-- 
1.7.1

[PATCH v7 1/5] usb: phy: samsung: Introducing usb phy driver for hsotg

[Praveen Paneri]

This driver uses usb phy framework to interact with s3c-hsotg. Supports
phy_init and phy_shutdown functions to enable/disable usb phy. Support
will be extended to host controllers and more Samsung SoCs.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 .../devicetree/bindings/usb/samsung-usbphy.txt     |   11 +
 drivers/usb/phy/Kconfig                            |    8 +
 drivers/usb/phy/Makefile                           |    1 +
 drivers/usb/phy/samsung-usbphy.c                   |  360 ++++++++++++++++++++
 include/linux/platform_data/samsung-usbphy.h       |   27 ++
 5 files changed, 407 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/samsung-usbphy.txt
 create mode 100644 drivers/usb/phy/samsung-usbphy.c
 create mode 100644 include/linux/platform_data/samsung-usbphy.h

diff --git a/Documentation/devicetree/bindings/usb/samsung-usbphy.txt b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
new file mode 100644
index 0000000..7b26e2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
@@ -0,0 +1,11 @@
+* Samsung's usb phy transceiver
+
+The Samsung's phy transceiver is used for controlling usb otg phy for
+s3c-hsotg usb device controller.
+TODO: Adding the PHY binding with controller(s) according to the under
+developement generic PHY driver.
+
+Required properties:
+- compatible : should be "samsung,exynos4210-usbphy"
+- reg : base physical address of the phy registers and length of memory mapped
+	region.
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 63c339b..313685f 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -32,3 +32,11 @@ config MV_U3D_PHY
 	help
 	  Enable this to support Marvell USB 3.0 phy controller for Marvell
 	  SoC.
+
+config SAMSUNG_USBPHY
+	bool "Samsung USB PHY controller Driver"
+	depends on USB_S3C_HSOTG
+	select USB_OTG_UTILS
+	help
+	  Enable this to support Samsung USB phy controller for samsung
+	  SoCs.
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index b069f29..55dcfc1 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_OMAP_USB2)			+= omap-usb2.o
 obj-$(CONFIG_USB_ISP1301)		+= isp1301.o
 obj-$(CONFIG_MV_U3D_PHY)		+= mv_u3d_phy.o
 obj-$(CONFIG_USB_EHCI_TEGRA)	+= tegra_usb_phy.o
+obj-$(CONFIG_SAMSUNG_USBPHY)		+= samsung-usbphy.o
diff --git a/drivers/usb/phy/samsung-usbphy.c b/drivers/usb/phy/samsung-usbphy.c
new file mode 100644
index 0000000..3c84aab
--- /dev/null
+++ b/drivers/usb/phy/samsung-usbphy.c
@@ -0,0 +1,360 @@
+/* linux/drivers/usb/phy/samsung-usbphy.c
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com
+ *
+ * Author: Praveen Paneri <p.paneri@samsung.com>
+ *
+ * Samsung USB2.0 High-speed OTG transceiver, talks to S3C HS OTG controller
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/usb/otg.h>
+#include <linux/platform_data/samsung-usbphy.h>
+
+/* Register definitions */
+
+#define SAMSUNG_PHYPWR				(0x00)
+
+#define PHYPWR_NORMAL_MASK			(0x19 << 0)
+#define PHYPWR_OTG_DISABLE			(0x1 << 4)
+#define PHYPWR_ANALOG_POWERDOWN			(0x1 << 3)
+#define PHYPWR_FORCE_SUSPEND			(0x1 << 1)
+/* For Exynos4 */
+#define PHYPWR_NORMAL_MASK_PHY0			(0x39 << 0)
+#define PHYPWR_SLEEP_PHY0			(0x1 << 5)
+
+#define SAMSUNG_PHYCLK				(0x04)
+
+#define PHYCLK_MODE_USB11			(0x1 << 6)
+#define PHYCLK_EXT_OSC				(0x1 << 5)
+#define PHYCLK_COMMON_ON_N			(0x1 << 4)
+#define PHYCLK_ID_PULL				(0x1 << 2)
+#define PHYCLK_CLKSEL_MASK			(0x3 << 0)
+#define PHYCLK_CLKSEL_48M			(0x0 << 0)
+#define PHYCLK_CLKSEL_12M			(0x2 << 0)
+#define PHYCLK_CLKSEL_24M			(0x3 << 0)
+
+#define SAMSUNG_RSTCON				(0x08)
+
+#define RSTCON_PHYLINK_SWRST			(0x1 << 2)
+#define RSTCON_HLINK_SWRST			(0x1 << 1)
+#define RSTCON_SWRST				(0x1 << 0)
+
+#ifndef MHZ
+#define MHZ (1000*1000)
+#endif
+
+enum samsung_cpu_type {
+	TYPE_S3C64XX,
+	TYPE_EXYNOS4210,
+};
+
+/*
+ * struct samsung_usbphy - transceiver driver state
+ * @phy: transceiver structure
+ * @plat: platform data
+ * @dev: The parent device supplied to the probe function
+ * @clk: usb phy clock
+ * @regs: usb phy register memory base
+ * @ref_clk_freq: reference clock frequency selection
+ * @cpu_type: machine identifier
+ */
+struct samsung_usbphy {
+	struct usb_phy	phy;
+	struct samsung_usbphy_data *plat;
+	struct device	*dev;
+	struct clk	*clk;
+	void __iomem	*regs;
+	int		ref_clk_freq;
+	int		cpu_type;
+};
+
+#define phy_to_sphy(x)		container_of((x), struct samsung_usbphy, phy)
+
+/*
+ * Returns reference clock frequency selection value
+ */
+static int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy)
+{
+	struct clk *ref_clk;
+	int refclk_freq = 0;
+
+	ref_clk = clk_get(sphy->dev, "xusbxti");
+	if (IS_ERR(ref_clk)) {
+		dev_err(sphy->dev, "Failed to get reference clock\n");
+		return PTR_ERR(ref_clk);
+	}
+
+	switch (clk_get_rate(ref_clk)) {
+	case 12 * MHZ:
+		refclk_freq = PHYCLK_CLKSEL_12M;
+		break;
+	case 24 * MHZ:
+		refclk_freq = PHYCLK_CLKSEL_24M;
+		break;
+	case 48 * MHZ:
+		refclk_freq = PHYCLK_CLKSEL_48M;
+		break;
+	default:
+		if (sphy->cpu_type == TYPE_S3C64XX)
+			refclk_freq = PHYCLK_CLKSEL_48M;
+		else
+			refclk_freq = PHYCLK_CLKSEL_24M;
+		break;
+	}
+	clk_put(ref_clk);
+
+	return refclk_freq;
+}
+
+static void samsung_usbphy_enable(struct samsung_usbphy *sphy)
+{
+	void __iomem *regs = sphy->regs;
+	u32 phypwr;
+	u32 phyclk;
+	u32 rstcon;
+
+	/* set clock frequency for PLL */
+	phyclk = sphy->ref_clk_freq;
+	phypwr = readl(regs + SAMSUNG_PHYPWR);
+	rstcon = readl(regs + SAMSUNG_RSTCON);
+
+	switch (sphy->cpu_type) {
+	case TYPE_S3C64XX:
+		phyclk &= ~PHYCLK_COMMON_ON_N;
+		phypwr &= ~PHYPWR_NORMAL_MASK;
+		rstcon |= RSTCON_SWRST;
+		break;
+	case TYPE_EXYNOS4210:
+		phypwr &= ~PHYPWR_NORMAL_MASK_PHY0;
+		rstcon |= RSTCON_SWRST;
+	default:
+		break;
+	}
+
+	writel(phyclk, regs + SAMSUNG_PHYCLK);
+	/* set to normal of PHY0 */
+	writel(phypwr, regs + SAMSUNG_PHYPWR);
+	/* reset all ports of PHY and Link */
+	writel(rstcon, regs + SAMSUNG_RSTCON);
+	udelay(10);
+	rstcon &= ~RSTCON_SWRST;
+	writel(rstcon, regs + SAMSUNG_RSTCON);
+}
+
+static void samsung_usbphy_disable(struct samsung_usbphy *sphy)
+{
+	void __iomem *regs = sphy->regs;
+	u32 phypwr;
+
+	phypwr = readl(regs + SAMSUNG_PHYPWR);
+
+	switch (sphy->cpu_type) {
+	case TYPE_S3C64XX:
+		phypwr |= PHYPWR_NORMAL_MASK;
+		break;
+	case TYPE_EXYNOS4210:
+		phypwr |= PHYPWR_NORMAL_MASK_PHY0;
+	default:
+		break;
+	}
+
+	/* unset to normal of PHY0 */
+	writel(phypwr, regs + SAMSUNG_PHYPWR);
+}
+
+/*
+ * The function passed to the usb driver for phy initialization
+ */
+static int samsung_usbphy_init(struct usb_phy *phy)
+{
+	struct samsung_usbphy *sphy;
+	int ret = 0;
+
+	sphy = phy_to_sphy(phy);
+
+	/* Enable the phy clock */
+	ret = clk_prepare_enable(sphy->clk);
+	if (ret) {
+		dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
+		return ret;
+	}
+
+	/* Disable phy isolation */
+	if (sphy->plat && sphy->plat->pmu_isolation)
+		sphy->plat->pmu_isolation(false);
+
+	/* Initialize usb phy registers */
+	samsung_usbphy_enable(sphy);
+
+	/* Disable the phy clock */
+	clk_disable_unprepare(sphy->clk);
+	return ret;
+}
+
+/*
+ * The function passed to the usb driver for phy shutdown
+ */
+static void samsung_usbphy_shutdown(struct usb_phy *phy)
+{
+	struct samsung_usbphy *sphy;
+
+	sphy = phy_to_sphy(phy);
+
+	if (clk_prepare_enable(sphy->clk)) {
+		dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
+		return;
+	}
+
+	/* De-initialize usb phy registers */
+	samsung_usbphy_disable(sphy);
+
+	/* Enable phy isolation */
+	if (sphy->plat && sphy->plat->pmu_isolation)
+		sphy->plat->pmu_isolation(true);
+
+	clk_disable_unprepare(sphy->clk);
+}
+
+static const struct of_device_id samsung_usbphy_dt_match[];
+
+static inline int samsung_usbphy_get_driver_data(struct platform_device *pdev)
+{
+	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
+		int data;
+		const struct of_device_id *match;
+		match = of_match_node(samsung_usbphy_dt_match,
+							pdev->dev.of_node);
+		data = (int) match->data;
+		return data;
+	}
+
+	return platform_get_device_id(pdev)->driver_data;
+}
+
+static int __devinit samsung_usbphy_probe(struct platform_device *pdev)
+{
+	struct samsung_usbphy *sphy;
+	struct samsung_usbphy_data *pdata;
+	struct device *dev = &pdev->dev;
+	struct resource *phy_mem;
+	void __iomem	*phy_base;
+	struct clk *clk;
+	int	ret = 0;
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_err(&pdev->dev, "%s: no platform data defined\n", __func__);
+		return -EINVAL;
+	}
+
+	phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!phy_mem) {
+		dev_err(dev, "%s: missing mem resource\n", __func__);
+		return -ENODEV;
+	}
+
+	phy_base = devm_request_and_ioremap(dev, phy_mem);
+	if (!phy_base) {
+		dev_err(dev, "%s: register mapping failed\n", __func__);
+		return -ENXIO;
+	}
+
+	sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL);
+	if (!sphy)
+		return -ENOMEM;
+
+	clk = devm_clk_get(dev, "otg");
+	if (IS_ERR(clk)) {
+		dev_err(dev, "Failed to get otg clock\n");
+		return PTR_ERR(clk);
+	}
+
+	sphy->dev		= &pdev->dev;
+	sphy->plat		= pdata;
+	sphy->regs		= phy_base;
+	sphy->clk		= clk;
+	sphy->phy.dev		= sphy->dev;
+	sphy->phy.label		= "samsung-usbphy";
+	sphy->phy.init		= samsung_usbphy_init;
+	sphy->phy.shutdown	= samsung_usbphy_shutdown;
+	sphy->cpu_type		= samsung_usbphy_get_driver_data(pdev);
+	sphy->ref_clk_freq	= samsung_usbphy_get_refclk_freq(sphy);
+
+	platform_set_drvdata(pdev, sphy);
+
+	ret = usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2);
+	return ret;
+}
+
+static int __exit samsung_usbphy_remove(struct platform_device *pdev)
+{
+	struct samsung_usbphy *sphy = platform_get_drvdata(pdev);
+
+	usb_remove_phy(&sphy->phy);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id samsung_usbphy_dt_match[] = {
+	{
+		.compatible = "samsung,s3c64xx-usbphy",
+		.data = (void *)TYPE_S3C64XX,
+	}, {
+		.compatible = "samsung,exynos4210-usbphy",
+		.data = (void *)TYPE_EXYNOS4210,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match);
+#else
+#define samsung_usbphy_dt_match NULL
+#endif
+
+static struct platform_device_id samsung_usbphy_driver_ids[] = {
+	{
+		.name		= "s3c64xx-usbphy",
+		.driver_data	= TYPE_S3C64XX,
+	}, {
+		.name		= "exynos4210-usbphy",
+		.driver_data	= TYPE_EXYNOS4210,
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids);
+
+static struct platform_driver samsung_usbphy_driver = {
+	.probe		= samsung_usbphy_probe,
+	.remove		= __devexit_p(samsung_usbphy_remove),
+	.id_table	= samsung_usbphy_driver_ids,
+	.driver		= {
+		.name	= "samsung-usbphy",
+		.owner	= THIS_MODULE,
+		.of_match_table = samsung_usbphy_dt_match,
+	},
+};
+
+module_platform_driver(samsung_usbphy_driver);
+
+MODULE_DESCRIPTION("Samsung USB phy controller");
+MODULE_AUTHOR("Praveen Paneri <p.paneri@samsung.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:samsung-usbphy");
diff --git a/include/linux/platform_data/samsung-usbphy.h b/include/linux/platform_data/samsung-usbphy.h
new file mode 100644
index 0000000..1bd24cb
--- /dev/null
+++ b/include/linux/platform_data/samsung-usbphy.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ *		http://www.samsung.com/
+ * Author: Praveen Paneri <p.paneri@samsung.com>
+ *
+ * Defines platform data for samsung usb phy driver.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __SAMSUNG_USBPHY_PLATFORM_H
+#define __SAMSUNG_USBPHY_PLATFORM_H
+
+/**
+ * samsung_usbphy_data - Platform data for USB PHY driver.
+ * @pmu_isolation: Function to control usb phy isolation in PMU.
+ */
+struct samsung_usbphy_data {
+	void (*pmu_isolation)(int on);
+};
+
+extern void samsung_usbphy_set_pdata(struct samsung_usbphy_data *pd);
+
+#endif /* __SAMSUNG_USBPHY_PLATFORM_H */
-- 
1.7.1

[PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Praveen Paneri]

Adding the transceiver to hsotg driver. Keeping the platform data
for continuing the smooth operation for boards which still uses it

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 drivers/usb/gadget/s3c-hsotg.c |   37 +++++++++++++++++++++++++++----------
 1 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 6f696ee..29815b9 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -32,6 +32,7 @@
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/otg.h>
 #include <linux/platform_data/s3c-hsotg.h>
 
 #include <mach/map.h>
@@ -133,7 +134,9 @@ struct s3c_hsotg_ep {
  * struct s3c_hsotg - driver state.
  * @dev: The parent device supplied to the probe function
  * @driver: USB gadget driver
- * @plat: The platform specific configuration data.
+ * @phy: The otg phy transceiver structure for phy control.
+ * @plat: The platform specific configuration data. This can be removed once
+ * all SoCs support usb transceiver.
  * @regs: The memory area mapped for accessing registers.
  * @irq: The IRQ number we are using
  * @supplies: Definition of USB power supplies
@@ -153,6 +156,7 @@ struct s3c_hsotg_ep {
 struct s3c_hsotg {
 	struct device		 *dev;
 	struct usb_gadget_driver *driver;
+	struct usb_phy		*phy;
 	struct s3c_hsotg_plat	 *plat;
 
 	spinlock_t              lock;
@@ -2854,7 +2858,10 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg)
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
 	dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
-	if (hsotg->plat->phy_init)
+
+	if (hsotg->phy)
+		usb_phy_init(hsotg->phy);
+	else if (hsotg->plat->phy_init)
 		hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
 }
 
@@ -2869,7 +2876,9 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg)
 {
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
-	if (hsotg->plat->phy_exit)
+	if (hsotg->phy)
+		usb_phy_shutdown(hsotg->phy);
+	else if (hsotg->plat->phy_exit)
 		hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
 }
 
@@ -3493,6 +3502,7 @@ static void s3c_hsotg_release(struct device *dev)
 static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 {
 	struct s3c_hsotg_plat *plat = pdev->dev.platform_data;
+	struct usb_phy *phy;
 	struct device *dev = &pdev->dev;
 	struct s3c_hsotg_ep *eps;
 	struct s3c_hsotg *hsotg;
@@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 	int ret;
 	int i;
 
-	plat = pdev->dev.platform_data;
-	if (!plat) {
-		dev_err(&pdev->dev, "no platform data defined\n");
-		return -EINVAL;
-	}
-
 	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg), GFP_KERNEL);
 	if (!hsotg) {
 		dev_err(dev, "cannot get memory\n");
 		return -ENOMEM;
 	}
 
+	plat = pdev->dev.platform_data;
+	if (!plat) {
+		/* Fallback for transceiver */
+		phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+		if (IS_ERR_OR_NULL(phy)) {
+			dev_err(&pdev->dev, "no platform data or transceiver defined\n");
+			return -EPROBE_DEFER;
+		} else {
+			hsotg->phy = phy;
+		}
+	} else {
+		hsotg->plat = plat;
+	}
+
 	hsotg->dev = dev;
-	hsotg->plat = plat;
 
 	hsotg->clk = devm_clk_get(&pdev->dev, "otg");
 	if (IS_ERR(hsotg->clk)) {
-- 
1.7.1

[PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Praveen Paneri]

Adding the transceiver to hsotg driver. Keeping the platform data
for continuing the smooth operation for boards which still uses it

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 drivers/usb/gadget/s3c-hsotg.c |   37 +++++++++++++++++++++++++++----------
 1 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 6f696ee..29815b9 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -32,6 +32,7 @@
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/otg.h>
 #include <linux/platform_data/s3c-hsotg.h>
 
 #include <mach/map.h>
@@ -133,7 +134,9 @@ struct s3c_hsotg_ep {
  * struct s3c_hsotg - driver state.
  * @dev: The parent device supplied to the probe function
  * @driver: USB gadget driver
- * @plat: The platform specific configuration data.
+ * @phy: The otg phy transceiver structure for phy control.
+ * @plat: The platform specific configuration data. This can be removed once
+ * all SoCs support usb transceiver.
  * @regs: The memory area mapped for accessing registers.
  * @irq: The IRQ number we are using
  * @supplies: Definition of USB power supplies
@@ -153,6 +156,7 @@ struct s3c_hsotg_ep {
 struct s3c_hsotg {
 	struct device		 *dev;
 	struct usb_gadget_driver *driver;
+	struct usb_phy		*phy;
 	struct s3c_hsotg_plat	 *plat;
 
 	spinlock_t              lock;
@@ -2854,7 +2858,10 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg)
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
 	dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
-	if (hsotg->plat->phy_init)
+
+	if (hsotg->phy)
+		usb_phy_init(hsotg->phy);
+	else if (hsotg->plat->phy_init)
 		hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
 }
 
@@ -2869,7 +2876,9 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg)
 {
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
-	if (hsotg->plat->phy_exit)
+	if (hsotg->phy)
+		usb_phy_shutdown(hsotg->phy);
+	else if (hsotg->plat->phy_exit)
 		hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
 }
 
@@ -3493,6 +3502,7 @@ static void s3c_hsotg_release(struct device *dev)
 static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 {
 	struct s3c_hsotg_plat *plat = pdev->dev.platform_data;
+	struct usb_phy *phy;
 	struct device *dev = &pdev->dev;
 	struct s3c_hsotg_ep *eps;
 	struct s3c_hsotg *hsotg;
@@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 	int ret;
 	int i;
 
-	plat = pdev->dev.platform_data;
-	if (!plat) {
-		dev_err(&pdev->dev, "no platform data defined\n");
-		return -EINVAL;
-	}
-
 	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg), GFP_KERNEL);
 	if (!hsotg) {
 		dev_err(dev, "cannot get memory\n");
 		return -ENOMEM;
 	}
 
+	plat = pdev->dev.platform_data;
+	if (!plat) {
+		/* Fallback for transceiver */
+		phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+		if (IS_ERR_OR_NULL(phy)) {
+			dev_err(&pdev->dev, "no platform data or transceiver defined\n");
+			return -EPROBE_DEFER;
+		} else {
+			hsotg->phy = phy;
+		}
+	} else {
+		hsotg->plat = plat;
+	}
+
 	hsotg->dev = dev;
-	hsotg->plat = plat;
 
 	hsotg->clk = devm_clk_get(&pdev->dev, "otg");
 	if (IS_ERR(hsotg->clk)) {
-- 
1.7.1

[PATCH v7 3/5] ARM: S3C64XX: Removing old phy setup code

[Praveen Paneri]

This patch removes old phy code from platform side. 'setup-usb-phy.c'
will be used for providing transceiver platform data in next
patch. Not all of the platform data code is removed as there are others
making use of platform_data defined for hsotg. That can be removed once
all the SoCs start using the new transceiver for usb phy setup.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 arch/arm/mach-s3c64xx/mach-crag6410.c |    3 -
 arch/arm/mach-s3c64xx/mach-smartq.c   |    3 -
 arch/arm/mach-s3c64xx/mach-smdk6410.c |    3 -
 arch/arm/mach-s3c64xx/setup-usb-phy.c |   79 ---------------------------------
 4 files changed, 0 insertions(+), 88 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index 13b7eaa..d738783 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -31,7 +31,6 @@
 #include <linux/spi/spi.h>
 
 #include <linux/i2c/pca953x.h>
-#include <linux/platform_data/s3c-hsotg.h>
 
 #include <video/platform_lcd.h>
 
@@ -778,7 +777,6 @@ static const struct gpio_led_platform_data gpio_leds_pdata = {
 	.num_leds = ARRAY_SIZE(gpio_leds),
 };
 
-static struct s3c_hsotg_plat crag6410_hsotg_pdata;
 
 static void __init crag6410_machine_init(void)
 {
@@ -804,7 +802,6 @@ static void __init crag6410_machine_init(void)
 	s3c_i2c0_set_platdata(&i2c0_pdata);
 	s3c_i2c1_set_platdata(&i2c1_pdata);
 	s3c_fb_set_platdata(&crag6410_lcd_pdata);
-	s3c_hsotg_set_platdata(&crag6410_hsotg_pdata);
 
 	i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 	i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index c6d7390..59bb34c 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -18,7 +18,6 @@
 #include <linux/serial_core.h>
 #include <linux/spi/spi_gpio.h>
 #include <linux/usb/gpio_vbus.h>
-#include <linux/platform_data/s3c-hsotg.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -187,7 +186,6 @@ static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = {
 	},
 };
 
-static struct s3c_hsotg_plat smartq_hsotg_pdata;
 
 static int __init smartq_lcd_setup_gpio(void)
 {
@@ -385,7 +383,6 @@ void __init smartq_map_io(void)
 void __init smartq_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
-	s3c_hsotg_set_platdata(&smartq_hsotg_pdata);
 	s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
 	s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
 	s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index da1a771..123f452 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -30,7 +30,6 @@
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/pwm_backlight.h>
-#include <linux/platform_data/s3c-hsotg.h>
 
 #ifdef CONFIG_SMDK6410_WM1190_EV1
 #include <linux/mfd/wm8350/core.h>
@@ -627,7 +626,6 @@ static struct platform_pwm_backlight_data smdk6410_bl_data = {
 	.pwm_id = 1,
 };
 
-static struct s3c_hsotg_plat smdk6410_hsotg_pdata;
 
 static void __init smdk6410_map_io(void)
 {
@@ -657,7 +655,6 @@ static void __init smdk6410_machine_init(void)
 	s3c_i2c0_set_platdata(NULL);
 	s3c_i2c1_set_platdata(NULL);
 	s3c_fb_set_platdata(&smdk6410_lcd_pdata);
-	s3c_hsotg_set_platdata(&smdk6410_hsotg_pdata);
 
 	samsung_keypad_set_platdata(&smdk6410_keypad_data);
 
diff --git a/arch/arm/mach-s3c64xx/setup-usb-phy.c b/arch/arm/mach-s3c64xx/setup-usb-phy.c
index f6757e0..7a09553 100644
--- a/arch/arm/mach-s3c64xx/setup-usb-phy.c
+++ b/arch/arm/mach-s3c64xx/setup-usb-phy.c
@@ -9,82 +9,3 @@
  *
  */
 
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <mach/map.h>
-#include <mach/regs-sys.h>
-#include <plat/cpu.h>
-#include <plat/regs-usb-hsotg-phy.h>
-#include <plat/usb-phy.h>
-
-static int s3c_usb_otgphy_init(struct platform_device *pdev)
-{
-	struct clk *xusbxti;
-	u32 phyclk;
-
-	writel(readl(S3C64XX_OTHERS) | S3C64XX_OTHERS_USBMASK, S3C64XX_OTHERS);
-
-	/* set clock frequency for PLL */
-	phyclk = readl(S3C_PHYCLK) & ~S3C_PHYCLK_CLKSEL_MASK;
-
-	xusbxti = clk_get(&pdev->dev, "xusbxti");
-	if (xusbxti && !IS_ERR(xusbxti)) {
-		switch (clk_get_rate(xusbxti)) {
-		case 12 * MHZ:
-			phyclk |= S3C_PHYCLK_CLKSEL_12M;
-			break;
-		case 24 * MHZ:
-			phyclk |= S3C_PHYCLK_CLKSEL_24M;
-			break;
-		default:
-		case 48 * MHZ:
-			/* default reference clock */
-			break;
-		}
-		clk_put(xusbxti);
-	}
-
-	/* TODO: select external clock/oscillator */
-	writel(phyclk | S3C_PHYCLK_CLK_FORCE, S3C_PHYCLK);
-
-	/* set to normal OTG PHY */
-	writel((readl(S3C_PHYPWR) & ~S3C_PHYPWR_NORMAL_MASK), S3C_PHYPWR);
-	mdelay(1);
-
-	/* reset OTG PHY and Link */
-	writel(S3C_RSTCON_PHY | S3C_RSTCON_HCLK | S3C_RSTCON_PHYCLK,
-			S3C_RSTCON);
-	udelay(20);	/* at-least 10uS */
-	writel(0, S3C_RSTCON);
-
-	return 0;
-}
-
-static int s3c_usb_otgphy_exit(struct platform_device *pdev)
-{
-	writel((readl(S3C_PHYPWR) | S3C_PHYPWR_ANALOG_POWERDOWN |
-				S3C_PHYPWR_OTG_DISABLE), S3C_PHYPWR);
-
-	writel(readl(S3C64XX_OTHERS) & ~S3C64XX_OTHERS_USBMASK, S3C64XX_OTHERS);
-
-	return 0;
-}
-
-int s5p_usb_phy_init(struct platform_device *pdev, int type)
-{
-	if (type == S5P_USB_PHY_DEVICE)
-		return s3c_usb_otgphy_init(pdev);
-
-	return -EINVAL;
-}
-
-int s5p_usb_phy_exit(struct platform_device *pdev, int type)
-{
-	if (type == S5P_USB_PHY_DEVICE)
-		return s3c_usb_otgphy_exit(pdev);
-
-	return -EINVAL;
-}
-- 
1.7.1

[PATCH v7 3/5] ARM: S3C64XX: Removing old phy setup code

[Praveen Paneri]

This patch removes old phy code from platform side. 'setup-usb-phy.c'
will be used for providing transceiver platform data in next
patch. Not all of the platform data code is removed as there are others
making use of platform_data defined for hsotg. That can be removed once
all the SoCs start using the new transceiver for usb phy setup.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 arch/arm/mach-s3c64xx/mach-crag6410.c |    3 -
 arch/arm/mach-s3c64xx/mach-smartq.c   |    3 -
 arch/arm/mach-s3c64xx/mach-smdk6410.c |    3 -
 arch/arm/mach-s3c64xx/setup-usb-phy.c |   79 ---------------------------------
 4 files changed, 0 insertions(+), 88 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index 13b7eaa..d738783 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -31,7 +31,6 @@
 #include <linux/spi/spi.h>
 
 #include <linux/i2c/pca953x.h>
-#include <linux/platform_data/s3c-hsotg.h>
 
 #include <video/platform_lcd.h>
 
@@ -778,7 +777,6 @@ static const struct gpio_led_platform_data gpio_leds_pdata = {
 	.num_leds = ARRAY_SIZE(gpio_leds),
 };
 
-static struct s3c_hsotg_plat crag6410_hsotg_pdata;
 
 static void __init crag6410_machine_init(void)
 {
@@ -804,7 +802,6 @@ static void __init crag6410_machine_init(void)
 	s3c_i2c0_set_platdata(&i2c0_pdata);
 	s3c_i2c1_set_platdata(&i2c1_pdata);
 	s3c_fb_set_platdata(&crag6410_lcd_pdata);
-	s3c_hsotg_set_platdata(&crag6410_hsotg_pdata);
 
 	i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 	i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index c6d7390..59bb34c 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -18,7 +18,6 @@
 #include <linux/serial_core.h>
 #include <linux/spi/spi_gpio.h>
 #include <linux/usb/gpio_vbus.h>
-#include <linux/platform_data/s3c-hsotg.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -187,7 +186,6 @@ static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = {
 	},
 };
 
-static struct s3c_hsotg_plat smartq_hsotg_pdata;
 
 static int __init smartq_lcd_setup_gpio(void)
 {
@@ -385,7 +383,6 @@ void __init smartq_map_io(void)
 void __init smartq_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
-	s3c_hsotg_set_platdata(&smartq_hsotg_pdata);
 	s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
 	s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
 	s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index da1a771..123f452 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -30,7 +30,6 @@
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/pwm_backlight.h>
-#include <linux/platform_data/s3c-hsotg.h>
 
 #ifdef CONFIG_SMDK6410_WM1190_EV1
 #include <linux/mfd/wm8350/core.h>
@@ -627,7 +626,6 @@ static struct platform_pwm_backlight_data smdk6410_bl_data = {
 	.pwm_id = 1,
 };
 
-static struct s3c_hsotg_plat smdk6410_hsotg_pdata;
 
 static void __init smdk6410_map_io(void)
 {
@@ -657,7 +655,6 @@ static void __init smdk6410_machine_init(void)
 	s3c_i2c0_set_platdata(NULL);
 	s3c_i2c1_set_platdata(NULL);
 	s3c_fb_set_platdata(&smdk6410_lcd_pdata);
-	s3c_hsotg_set_platdata(&smdk6410_hsotg_pdata);
 
 	samsung_keypad_set_platdata(&smdk6410_keypad_data);
 
diff --git a/arch/arm/mach-s3c64xx/setup-usb-phy.c b/arch/arm/mach-s3c64xx/setup-usb-phy.c
index f6757e0..7a09553 100644
--- a/arch/arm/mach-s3c64xx/setup-usb-phy.c
+++ b/arch/arm/mach-s3c64xx/setup-usb-phy.c
@@ -9,82 +9,3 @@
  *
  */
 
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <mach/map.h>
-#include <mach/regs-sys.h>
-#include <plat/cpu.h>
-#include <plat/regs-usb-hsotg-phy.h>
-#include <plat/usb-phy.h>
-
-static int s3c_usb_otgphy_init(struct platform_device *pdev)
-{
-	struct clk *xusbxti;
-	u32 phyclk;
-
-	writel(readl(S3C64XX_OTHERS) | S3C64XX_OTHERS_USBMASK, S3C64XX_OTHERS);
-
-	/* set clock frequency for PLL */
-	phyclk = readl(S3C_PHYCLK) & ~S3C_PHYCLK_CLKSEL_MASK;
-
-	xusbxti = clk_get(&pdev->dev, "xusbxti");
-	if (xusbxti && !IS_ERR(xusbxti)) {
-		switch (clk_get_rate(xusbxti)) {
-		case 12 * MHZ:
-			phyclk |= S3C_PHYCLK_CLKSEL_12M;
-			break;
-		case 24 * MHZ:
-			phyclk |= S3C_PHYCLK_CLKSEL_24M;
-			break;
-		default:
-		case 48 * MHZ:
-			/* default reference clock */
-			break;
-		}
-		clk_put(xusbxti);
-	}
-
-	/* TODO: select external clock/oscillator */
-	writel(phyclk | S3C_PHYCLK_CLK_FORCE, S3C_PHYCLK);
-
-	/* set to normal OTG PHY */
-	writel((readl(S3C_PHYPWR) & ~S3C_PHYPWR_NORMAL_MASK), S3C_PHYPWR);
-	mdelay(1);
-
-	/* reset OTG PHY and Link */
-	writel(S3C_RSTCON_PHY | S3C_RSTCON_HCLK | S3C_RSTCON_PHYCLK,
-			S3C_RSTCON);
-	udelay(20);	/* at-least 10uS */
-	writel(0, S3C_RSTCON);
-
-	return 0;
-}
-
-static int s3c_usb_otgphy_exit(struct platform_device *pdev)
-{
-	writel((readl(S3C_PHYPWR) | S3C_PHYPWR_ANALOG_POWERDOWN |
-				S3C_PHYPWR_OTG_DISABLE), S3C_PHYPWR);
-
-	writel(readl(S3C64XX_OTHERS) & ~S3C64XX_OTHERS_USBMASK, S3C64XX_OTHERS);
-
-	return 0;
-}
-
-int s5p_usb_phy_init(struct platform_device *pdev, int type)
-{
-	if (type == S5P_USB_PHY_DEVICE)
-		return s3c_usb_otgphy_init(pdev);
-
-	return -EINVAL;
-}
-
-int s5p_usb_phy_exit(struct platform_device *pdev, int type)
-{
-	if (type == S5P_USB_PHY_DEVICE)
-		return s3c_usb_otgphy_exit(pdev);
-
-	return -EINVAL;
-}
-- 
1.7.1

[PATCH v7 4/5] ARM: S3C64XX: Enabling samsung-usbphy driver

[Praveen Paneri]

Adding platform device for samsung-usbphy driver. Enabling it for
s3c64xx based machines using s3c-hsotg.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 arch/arm/mach-s3c64xx/include/mach/map.h     |    2 +
 arch/arm/mach-s3c64xx/mach-crag6410.c        |    7 ++++++
 arch/arm/mach-s3c64xx/mach-smartq.c          |    8 +++++++
 arch/arm/mach-s3c64xx/mach-smdk6410.c        |    8 +++++++
 arch/arm/mach-s3c64xx/setup-usb-phy.c        |   14 +++++++++++++
 arch/arm/plat-samsung/devs.c                 |   28 ++++++++++++++++++++++++++
 arch/arm/plat-samsung/include/plat/devs.h    |    1 +
 arch/arm/plat-samsung/include/plat/usb-phy.h |    1 +
 8 files changed, 69 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/include/mach/map.h b/arch/arm/mach-s3c64xx/include/mach/map.h
index 8e2097b..dc482bb 100644
--- a/arch/arm/mach-s3c64xx/include/mach/map.h
+++ b/arch/arm/mach-s3c64xx/include/mach/map.h
@@ -65,6 +65,7 @@
 
 #define S3C64XX_PA_NAND		(0x70200000)
 #define S3C64XX_PA_FB		(0x77100000)
+#define S3C64XX_PA_USB_HSPHY	(0x7C100000)
 #define S3C64XX_PA_USB_HSOTG	(0x7C000000)
 #define S3C64XX_PA_WATCHDOG	(0x7E004000)
 #define S3C64XX_PA_RTC		(0x7E005000)
@@ -113,6 +114,7 @@
 #define S3C_PA_FB		S3C64XX_PA_FB
 #define S3C_PA_USBHOST		S3C64XX_PA_USBHOST
 #define S3C_PA_USB_HSOTG	S3C64XX_PA_USB_HSOTG
+#define S3C_PA_USB_PHY		S3C64XX_PA_USB_HSPHY
 #define S3C_PA_RTC		S3C64XX_PA_RTC
 #define S3C_PA_WDT		S3C64XX_PA_WATCHDOG
 #define S3C_PA_SPI0		S3C64XX_PA_SPI0
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index d738783..9ea99a7 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -31,6 +31,7 @@
 #include <linux/spi/spi.h>
 
 #include <linux/i2c/pca953x.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <video/platform_lcd.h>
 
@@ -69,6 +70,7 @@
 #include <plat/adc.h>
 #include <linux/platform_data/i2c-s3c2410.h>
 #include <plat/pm.h>
+#include <plat/usb-phy.h>
 
 #include "common.h"
 
@@ -346,6 +348,7 @@ static struct platform_device wallvdd_device = {
 };
 
 static struct platform_device *crag6410_devices[] __initdata = {
+	&samsung_device_usbphy,
 	&s3c_device_hsmmc0,
 	&s3c_device_hsmmc2,
 	&s3c_device_i2c0,
@@ -777,6 +780,9 @@ static const struct gpio_led_platform_data gpio_leds_pdata = {
 	.num_leds = ARRAY_SIZE(gpio_leds),
 };
 
+static struct samsung_usbphy_data crag6410_usbphy_pdata __initdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
 
 static void __init crag6410_machine_init(void)
 {
@@ -802,6 +808,7 @@ static void __init crag6410_machine_init(void)
 	s3c_i2c0_set_platdata(&i2c0_pdata);
 	s3c_i2c1_set_platdata(&i2c1_pdata);
 	s3c_fb_set_platdata(&crag6410_lcd_pdata);
+	samsung_usbphy_set_pdata(&crag6410_usbphy_pdata);
 
 	i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 	i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index 59bb34c..f18a0ab 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -18,6 +18,7 @@
 #include <linux/serial_core.h>
 #include <linux/spi/spi_gpio.h>
 #include <linux/usb/gpio_vbus.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -36,6 +37,7 @@
 #include <linux/platform_data/usb-ohci-s3c2410.h>
 #include <plat/sdhci.h>
 #include <linux/platform_data/touchscreen-s3c2410.h>
+#include <plat/usb-phy.h>
 
 #include <video/platform_lcd.h>
 
@@ -234,6 +236,7 @@ static struct i2c_board_info smartq_i2c_devs[] __initdata = {
 };
 
 static struct platform_device *smartq_devices[] __initdata = {
+	&samsung_device_usbphy,
 	&s3c_device_hsmmc1,	/* Init iNAND first, ... */
 	&s3c_device_hsmmc0,	/* ... then the external SD card */
 	&s3c_device_hsmmc2,
@@ -380,9 +383,14 @@ void __init smartq_map_io(void)
 	smartq_lcd_mode_set();
 }
 
+static struct samsung_usbphy_data smartq_usbphy_pdata __initdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
+
 void __init smartq_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
+	samsung_usbphy_set_pdata(&smartq_usbphy_pdata);
 	s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
 	s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
 	s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index 123f452..cef2c95 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -30,6 +30,7 @@
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/pwm_backlight.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #ifdef CONFIG_SMDK6410_WM1190_EV1
 #include <linux/mfd/wm8350/core.h>
@@ -72,6 +73,8 @@
 #include <linux/platform_data/touchscreen-s3c2410.h>
 #include <plat/keypad.h>
 #include <plat/backlight.h>
+#include <plat/regs-fb-v4.h>
+#include <plat/usb-phy.h>
 
 #include "common.h"
 
@@ -263,6 +266,7 @@ static struct samsung_keypad_platdata smdk6410_keypad_data __initdata = {
 static struct map_desc smdk6410_iodesc[] = {};
 
 static struct platform_device *smdk6410_devices[] __initdata = {
+	&samsung_device_usbphy,
 #ifdef CONFIG_SMDK6410_SD_CH0
 	&s3c_device_hsmmc0,
 #endif
@@ -626,6 +630,9 @@ static struct platform_pwm_backlight_data smdk6410_bl_data = {
 	.pwm_id = 1,
 };
 
+static struct samsung_usbphy_data smdk6410_usbphy_pdata __initdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
 
 static void __init smdk6410_map_io(void)
 {
@@ -655,6 +662,7 @@ static void __init smdk6410_machine_init(void)
 	s3c_i2c0_set_platdata(NULL);
 	s3c_i2c1_set_platdata(NULL);
 	s3c_fb_set_platdata(&smdk6410_lcd_pdata);
+	samsung_usbphy_set_pdata(&smdk6410_usbphy_pdata);
 
 	samsung_keypad_set_platdata(&smdk6410_keypad_data);
 
diff --git a/arch/arm/mach-s3c64xx/setup-usb-phy.c b/arch/arm/mach-s3c64xx/setup-usb-phy.c
index 7a09553..3aee778 100644
--- a/arch/arm/mach-s3c64xx/setup-usb-phy.c
+++ b/arch/arm/mach-s3c64xx/setup-usb-phy.c
@@ -9,3 +9,17 @@
  *
  */
 
+#include <linux/io.h>
+#include <mach/map.h>
+#include <mach/regs-sys.h>
+
+void s5p_usb_phy_pmu_isolation(int on)
+{
+	if (on) {
+		writel(readl(S3C64XX_OTHERS) & ~S3C64XX_OTHERS_USBMASK,
+			S3C64XX_OTHERS);
+	} else {
+		writel(readl(S3C64XX_OTHERS) | S3C64XX_OTHERS_USBMASK,
+			S3C64XX_OTHERS);
+	}
+}
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 03f654d..9cdb666 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -31,6 +31,7 @@
 #include <linux/ioport.h>
 #include <linux/platform_data/s3c-hsudc.h>
 #include <linux/platform_data/s3c-hsotg.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <media/s5p_hdmi.h>
 
@@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
 
 /* USB */
 
+#ifdef CONFIG_S3C_DEV_USB_HSOTG
+/* USB PHY*/
+static struct resource samsung_usbphy_resource[] = {
+	[0] = {
+		.start = S3C_PA_USB_PHY,
+		.end   = S3C_PA_USB_PHY + SZ_16 - 1,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+struct platform_device samsung_device_usbphy = {
+	.name		= "s3c64xx-usbphy",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(samsung_usbphy_resource),
+	.resource	= samsung_usbphy_resource,
+};
+
+void __init samsung_usbphy_set_pdata(struct samsung_usbphy_data *pd)
+{
+	s3c_set_platdata(pd, sizeof(struct samsung_usbphy_data),
+			&samsung_device_usbphy);
+}
+#endif
+
 #ifdef CONFIG_S3C_DEV_USB_HOST
 static struct resource s3c_usb_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C_PA_USBHOST, SZ_256),
@@ -1476,6 +1501,8 @@ struct platform_device s3c_device_usb_hsotg = {
 	},
 };
 
+#ifndef CONFIG_ARCH_S3C64XX
+/* TODO: To be removed later. Currently only S3C64XX is platform data free */
 void __init s3c_hsotg_set_platdata(struct s3c_hsotg_plat *pd)
 {
 	struct s3c_hsotg_plat *npd;
@@ -1488,6 +1515,7 @@ void __init s3c_hsotg_set_platdata(struct s3c_hsotg_plat *pd)
 	if (!npd->phy_exit)
 		npd->phy_exit = s5p_usb_phy_exit;
 }
+#endif
 #endif /* CONFIG_S3C_DEV_USB_HSOTG */
 
 /* USB High Spped 2.0 Device (Gadget) */
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 5da4b4f..3849c88 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -138,6 +138,7 @@ extern struct platform_device exynos_device_drm;
 extern struct platform_device samsung_asoc_dma;
 extern struct platform_device samsung_asoc_idma;
 extern struct platform_device samsung_device_keypad;
+extern struct platform_device samsung_device_usbphy;
 
 /* s3c2440 specific devices */
 
diff --git a/arch/arm/plat-samsung/include/plat/usb-phy.h b/arch/arm/plat-samsung/include/plat/usb-phy.h
index 959bcdb..165ffe7 100644
--- a/arch/arm/plat-samsung/include/plat/usb-phy.h
+++ b/arch/arm/plat-samsung/include/plat/usb-phy.h
@@ -18,5 +18,6 @@ enum s5p_usb_phy_type {
 
 extern int s5p_usb_phy_init(struct platform_device *pdev, int type);
 extern int s5p_usb_phy_exit(struct platform_device *pdev, int type);
+extern void s5p_usb_phy_pmu_isolation(int on);
 
 #endif /* __PLAT_SAMSUNG_USB_PHY_H */
-- 
1.7.1

[PATCH v7 4/5] ARM: S3C64XX: Enabling samsung-usbphy driver

[Praveen Paneri]

Adding platform device for samsung-usbphy driver. Enabling it for
s3c64xx based machines using s3c-hsotg.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 arch/arm/mach-s3c64xx/include/mach/map.h     |    2 +
 arch/arm/mach-s3c64xx/mach-crag6410.c        |    7 ++++++
 arch/arm/mach-s3c64xx/mach-smartq.c          |    8 +++++++
 arch/arm/mach-s3c64xx/mach-smdk6410.c        |    8 +++++++
 arch/arm/mach-s3c64xx/setup-usb-phy.c        |   14 +++++++++++++
 arch/arm/plat-samsung/devs.c                 |   28 ++++++++++++++++++++++++++
 arch/arm/plat-samsung/include/plat/devs.h    |    1 +
 arch/arm/plat-samsung/include/plat/usb-phy.h |    1 +
 8 files changed, 69 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/include/mach/map.h b/arch/arm/mach-s3c64xx/include/mach/map.h
index 8e2097b..dc482bb 100644
--- a/arch/arm/mach-s3c64xx/include/mach/map.h
+++ b/arch/arm/mach-s3c64xx/include/mach/map.h
@@ -65,6 +65,7 @@
 
 #define S3C64XX_PA_NAND		(0x70200000)
 #define S3C64XX_PA_FB		(0x77100000)
+#define S3C64XX_PA_USB_HSPHY	(0x7C100000)
 #define S3C64XX_PA_USB_HSOTG	(0x7C000000)
 #define S3C64XX_PA_WATCHDOG	(0x7E004000)
 #define S3C64XX_PA_RTC		(0x7E005000)
@@ -113,6 +114,7 @@
 #define S3C_PA_FB		S3C64XX_PA_FB
 #define S3C_PA_USBHOST		S3C64XX_PA_USBHOST
 #define S3C_PA_USB_HSOTG	S3C64XX_PA_USB_HSOTG
+#define S3C_PA_USB_PHY		S3C64XX_PA_USB_HSPHY
 #define S3C_PA_RTC		S3C64XX_PA_RTC
 #define S3C_PA_WDT		S3C64XX_PA_WATCHDOG
 #define S3C_PA_SPI0		S3C64XX_PA_SPI0
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index d738783..9ea99a7 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -31,6 +31,7 @@
 #include <linux/spi/spi.h>
 
 #include <linux/i2c/pca953x.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <video/platform_lcd.h>
 
@@ -69,6 +70,7 @@
 #include <plat/adc.h>
 #include <linux/platform_data/i2c-s3c2410.h>
 #include <plat/pm.h>
+#include <plat/usb-phy.h>
 
 #include "common.h"
 
@@ -346,6 +348,7 @@ static struct platform_device wallvdd_device = {
 };
 
 static struct platform_device *crag6410_devices[] __initdata = {
+	&samsung_device_usbphy,
 	&s3c_device_hsmmc0,
 	&s3c_device_hsmmc2,
 	&s3c_device_i2c0,
@@ -777,6 +780,9 @@ static const struct gpio_led_platform_data gpio_leds_pdata = {
 	.num_leds = ARRAY_SIZE(gpio_leds),
 };
 
+static struct samsung_usbphy_data crag6410_usbphy_pdata __initdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
 
 static void __init crag6410_machine_init(void)
 {
@@ -802,6 +808,7 @@ static void __init crag6410_machine_init(void)
 	s3c_i2c0_set_platdata(&i2c0_pdata);
 	s3c_i2c1_set_platdata(&i2c1_pdata);
 	s3c_fb_set_platdata(&crag6410_lcd_pdata);
+	samsung_usbphy_set_pdata(&crag6410_usbphy_pdata);
 
 	i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 	i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index 59bb34c..f18a0ab 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -18,6 +18,7 @@
 #include <linux/serial_core.h>
 #include <linux/spi/spi_gpio.h>
 #include <linux/usb/gpio_vbus.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -36,6 +37,7 @@
 #include <linux/platform_data/usb-ohci-s3c2410.h>
 #include <plat/sdhci.h>
 #include <linux/platform_data/touchscreen-s3c2410.h>
+#include <plat/usb-phy.h>
 
 #include <video/platform_lcd.h>
 
@@ -234,6 +236,7 @@ static struct i2c_board_info smartq_i2c_devs[] __initdata = {
 };
 
 static struct platform_device *smartq_devices[] __initdata = {
+	&samsung_device_usbphy,
 	&s3c_device_hsmmc1,	/* Init iNAND first, ... */
 	&s3c_device_hsmmc0,	/* ... then the external SD card */
 	&s3c_device_hsmmc2,
@@ -380,9 +383,14 @@ void __init smartq_map_io(void)
 	smartq_lcd_mode_set();
 }
 
+static struct samsung_usbphy_data smartq_usbphy_pdata __initdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
+
 void __init smartq_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
+	samsung_usbphy_set_pdata(&smartq_usbphy_pdata);
 	s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
 	s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
 	s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index 123f452..cef2c95 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -30,6 +30,7 @@
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/pwm_backlight.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #ifdef CONFIG_SMDK6410_WM1190_EV1
 #include <linux/mfd/wm8350/core.h>
@@ -72,6 +73,8 @@
 #include <linux/platform_data/touchscreen-s3c2410.h>
 #include <plat/keypad.h>
 #include <plat/backlight.h>
+#include <plat/regs-fb-v4.h>
+#include <plat/usb-phy.h>
 
 #include "common.h"
 
@@ -263,6 +266,7 @@ static struct samsung_keypad_platdata smdk6410_keypad_data __initdata = {
 static struct map_desc smdk6410_iodesc[] = {};
 
 static struct platform_device *smdk6410_devices[] __initdata = {
+	&samsung_device_usbphy,
 #ifdef CONFIG_SMDK6410_SD_CH0
 	&s3c_device_hsmmc0,
 #endif
@@ -626,6 +630,9 @@ static struct platform_pwm_backlight_data smdk6410_bl_data = {
 	.pwm_id = 1,
 };
 
+static struct samsung_usbphy_data smdk6410_usbphy_pdata __initdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
 
 static void __init smdk6410_map_io(void)
 {
@@ -655,6 +662,7 @@ static void __init smdk6410_machine_init(void)
 	s3c_i2c0_set_platdata(NULL);
 	s3c_i2c1_set_platdata(NULL);
 	s3c_fb_set_platdata(&smdk6410_lcd_pdata);
+	samsung_usbphy_set_pdata(&smdk6410_usbphy_pdata);
 
 	samsung_keypad_set_platdata(&smdk6410_keypad_data);
 
diff --git a/arch/arm/mach-s3c64xx/setup-usb-phy.c b/arch/arm/mach-s3c64xx/setup-usb-phy.c
index 7a09553..3aee778 100644
--- a/arch/arm/mach-s3c64xx/setup-usb-phy.c
+++ b/arch/arm/mach-s3c64xx/setup-usb-phy.c
@@ -9,3 +9,17 @@
  *
  */
 
+#include <linux/io.h>
+#include <mach/map.h>
+#include <mach/regs-sys.h>
+
+void s5p_usb_phy_pmu_isolation(int on)
+{
+	if (on) {
+		writel(readl(S3C64XX_OTHERS) & ~S3C64XX_OTHERS_USBMASK,
+			S3C64XX_OTHERS);
+	} else {
+		writel(readl(S3C64XX_OTHERS) | S3C64XX_OTHERS_USBMASK,
+			S3C64XX_OTHERS);
+	}
+}
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 03f654d..9cdb666 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -31,6 +31,7 @@
 #include <linux/ioport.h>
 #include <linux/platform_data/s3c-hsudc.h>
 #include <linux/platform_data/s3c-hsotg.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <media/s5p_hdmi.h>
 
@@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
 
 /* USB */
 
+#ifdef CONFIG_S3C_DEV_USB_HSOTG
+/* USB PHY*/
+static struct resource samsung_usbphy_resource[] = {
+	[0] = {
+		.start = S3C_PA_USB_PHY,
+		.end   = S3C_PA_USB_PHY + SZ_16 - 1,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+struct platform_device samsung_device_usbphy = {
+	.name		= "s3c64xx-usbphy",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(samsung_usbphy_resource),
+	.resource	= samsung_usbphy_resource,
+};
+
+void __init samsung_usbphy_set_pdata(struct samsung_usbphy_data *pd)
+{
+	s3c_set_platdata(pd, sizeof(struct samsung_usbphy_data),
+			&samsung_device_usbphy);
+}
+#endif
+
 #ifdef CONFIG_S3C_DEV_USB_HOST
 static struct resource s3c_usb_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C_PA_USBHOST, SZ_256),
@@ -1476,6 +1501,8 @@ struct platform_device s3c_device_usb_hsotg = {
 	},
 };
 
+#ifndef CONFIG_ARCH_S3C64XX
+/* TODO: To be removed later. Currently only S3C64XX is platform data free */
 void __init s3c_hsotg_set_platdata(struct s3c_hsotg_plat *pd)
 {
 	struct s3c_hsotg_plat *npd;
@@ -1488,6 +1515,7 @@ void __init s3c_hsotg_set_platdata(struct s3c_hsotg_plat *pd)
 	if (!npd->phy_exit)
 		npd->phy_exit = s5p_usb_phy_exit;
 }
+#endif
 #endif /* CONFIG_S3C_DEV_USB_HSOTG */
 
 /* USB High Spped 2.0 Device (Gadget) */
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 5da4b4f..3849c88 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -138,6 +138,7 @@ extern struct platform_device exynos_device_drm;
 extern struct platform_device samsung_asoc_dma;
 extern struct platform_device samsung_asoc_idma;
 extern struct platform_device samsung_device_keypad;
+extern struct platform_device samsung_device_usbphy;
 
 /* s3c2440 specific devices */
 
diff --git a/arch/arm/plat-samsung/include/plat/usb-phy.h b/arch/arm/plat-samsung/include/plat/usb-phy.h
index 959bcdb..165ffe7 100644
--- a/arch/arm/plat-samsung/include/plat/usb-phy.h
+++ b/arch/arm/plat-samsung/include/plat/usb-phy.h
@@ -18,5 +18,6 @@ enum s5p_usb_phy_type {
 
 extern int s5p_usb_phy_init(struct platform_device *pdev, int type);
 extern int s5p_usb_phy_exit(struct platform_device *pdev, int type);
+extern void s5p_usb_phy_pmu_isolation(int on);
 
 #endif /* __PLAT_SAMSUNG_USB_PHY_H */
-- 
1.7.1

[PATCH v7 5/5] ARM: Exynos4210: Enabling samsung-usbphy driver

[Praveen Paneri]

Adding usbphy node for Exynos4210 along with the platform data.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 arch/arm/boot/dts/exynos4210-smdkv310.dts |    5 +++++
 arch/arm/mach-exynos/include/mach/map.h   |    1 +
 arch/arm/mach-exynos/mach-exynos4-dt.c    |    8 ++++++++
 arch/arm/mach-exynos/setup-usb-phy.c      |   13 +++++++++++++
 4 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts
index 63610c3..f59e255 100644
--- a/arch/arm/boot/dts/exynos4210-smdkv310.dts
+++ b/arch/arm/boot/dts/exynos4210-smdkv310.dts
@@ -43,6 +43,11 @@
 		status = "okay";
 	};
 
+	usbphy@125B0000 {
+		compatible = "samsung,exynos4210-usbphy";
+		reg = <0x125B0000 0x100>;
+	};
+
 	keypad@100A0000 {
 		samsung,keypad-num-rows = <2>;
 		samsung,keypad-num-columns = <8>;
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 8480849..9694424 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -242,6 +242,7 @@
 #define S3C_PA_SPI1			EXYNOS4_PA_SPI1
 #define S3C_PA_SPI2			EXYNOS4_PA_SPI2
 #define S3C_PA_USB_HSOTG		EXYNOS4_PA_HSOTG
+#define S3C_PA_USB_PHY			EXYNOS4_PA_HSPHY
 
 #define S5P_PA_EHCI			EXYNOS4_PA_EHCI
 #define S5P_PA_FIMC0			EXYNOS4_PA_FIMC0
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index e58d786..a9e0a0d 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -13,6 +13,7 @@
 
 #include <linux/of_platform.h>
 #include <linux/serial_core.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <asm/mach/arch.h>
 #include <asm/hardware/gic.h>
@@ -20,9 +21,14 @@
 
 #include <plat/cpu.h>
 #include <plat/regs-serial.h>
+#include <plat/usb-phy.h>
 
 #include "common.h"
 
+static struct samsung_usbphy_data exynos4_usbphy_pdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
+
 /*
  * The following lookup table is used to override device names when devices
  * are registered from device tree. This is temporarily added to enable
@@ -77,6 +83,8 @@ static const struct of_dev_auxdata exynos4_auxdata_lookup[] __initconst = {
 				"exynos4210-spi.2", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-usbphy", EXYNOS4_PA_HSPHY,
+			"s3c-usbphy", &exynos4_usbphy_pdata),
 	{},
 };
 
diff --git a/arch/arm/mach-exynos/setup-usb-phy.c b/arch/arm/mach-exynos/setup-usb-phy.c
index b81cc56..1c62d20 100644
--- a/arch/arm/mach-exynos/setup-usb-phy.c
+++ b/arch/arm/mach-exynos/setup-usb-phy.c
@@ -221,3 +221,16 @@ int s5p_usb_phy_exit(struct platform_device *pdev, int type)
 
 	return -EINVAL;
 }
+
+void s5p_usb_phy_pmu_isolation(int on)
+{
+	if (on) {
+		writel(readl(S5P_USBDEVICE_PHY_CONTROL)
+			& ~S5P_USBDEVICE_PHY_ENABLE,
+				S5P_USBDEVICE_PHY_CONTROL);
+	} else {
+		writel(readl(S5P_USBDEVICE_PHY_CONTROL)
+			| S5P_USBDEVICE_PHY_ENABLE,
+				S5P_USBDEVICE_PHY_CONTROL);
+	}
+}
-- 
1.7.1

[PATCH v7 5/5] ARM: Exynos4210: Enabling samsung-usbphy driver

[Praveen Paneri]

Adding usbphy node for Exynos4210 along with the platform data.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 arch/arm/boot/dts/exynos4210-smdkv310.dts |    5 +++++
 arch/arm/mach-exynos/include/mach/map.h   |    1 +
 arch/arm/mach-exynos/mach-exynos4-dt.c    |    8 ++++++++
 arch/arm/mach-exynos/setup-usb-phy.c      |   13 +++++++++++++
 4 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts
index 63610c3..f59e255 100644
--- a/arch/arm/boot/dts/exynos4210-smdkv310.dts
+++ b/arch/arm/boot/dts/exynos4210-smdkv310.dts
@@ -43,6 +43,11 @@
 		status = "okay";
 	};
 
+	usbphy at 125B0000 {
+		compatible = "samsung,exynos4210-usbphy";
+		reg = <0x125B0000 0x100>;
+	};
+
 	keypad at 100A0000 {
 		samsung,keypad-num-rows = <2>;
 		samsung,keypad-num-columns = <8>;
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 8480849..9694424 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -242,6 +242,7 @@
 #define S3C_PA_SPI1			EXYNOS4_PA_SPI1
 #define S3C_PA_SPI2			EXYNOS4_PA_SPI2
 #define S3C_PA_USB_HSOTG		EXYNOS4_PA_HSOTG
+#define S3C_PA_USB_PHY			EXYNOS4_PA_HSPHY
 
 #define S5P_PA_EHCI			EXYNOS4_PA_EHCI
 #define S5P_PA_FIMC0			EXYNOS4_PA_FIMC0
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index e58d786..a9e0a0d 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -13,6 +13,7 @@
 
 #include <linux/of_platform.h>
 #include <linux/serial_core.h>
+#include <linux/platform_data/samsung-usbphy.h>
 
 #include <asm/mach/arch.h>
 #include <asm/hardware/gic.h>
@@ -20,9 +21,14 @@
 
 #include <plat/cpu.h>
 #include <plat/regs-serial.h>
+#include <plat/usb-phy.h>
 
 #include "common.h"
 
+static struct samsung_usbphy_data exynos4_usbphy_pdata = {
+	.pmu_isolation = s5p_usb_phy_pmu_isolation,
+};
+
 /*
  * The following lookup table is used to override device names when devices
  * are registered from device tree. This is temporarily added to enable
@@ -77,6 +83,8 @@ static const struct of_dev_auxdata exynos4_auxdata_lookup[] __initconst = {
 				"exynos4210-spi.2", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-usbphy", EXYNOS4_PA_HSPHY,
+			"s3c-usbphy", &exynos4_usbphy_pdata),
 	{},
 };
 
diff --git a/arch/arm/mach-exynos/setup-usb-phy.c b/arch/arm/mach-exynos/setup-usb-phy.c
index b81cc56..1c62d20 100644
--- a/arch/arm/mach-exynos/setup-usb-phy.c
+++ b/arch/arm/mach-exynos/setup-usb-phy.c
@@ -221,3 +221,16 @@ int s5p_usb_phy_exit(struct platform_device *pdev, int type)
 
 	return -EINVAL;
 }
+
+void s5p_usb_phy_pmu_isolation(int on)
+{
+	if (on) {
+		writel(readl(S5P_USBDEVICE_PHY_CONTROL)
+			& ~S5P_USBDEVICE_PHY_ENABLE,
+				S5P_USBDEVICE_PHY_CONTROL);
+	} else {
+		writel(readl(S5P_USBDEVICE_PHY_CONTROL)
+			| S5P_USBDEVICE_PHY_ENABLE,
+				S5P_USBDEVICE_PHY_CONTROL);
+	}
+}
-- 
1.7.1

Re: [PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 1030 bytes --]

Hi,

On Tue, Oct 30, 2012 at 10:27:34AM +0530, Praveen Paneri wrote:
> @@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
>  	int ret;
>  	int i;
>  
> -	plat = pdev->dev.platform_data;
> -	if (!plat) {
> -		dev_err(&pdev->dev, "no platform data defined\n");
> -		return -EINVAL;
> -	}
> -
>  	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg), GFP_KERNEL);
>  	if (!hsotg) {
>  		dev_err(dev, "cannot get memory\n");
>  		return -ENOMEM;
>  	}
>  
> +	plat = pdev->dev.platform_data;
> +	if (!plat) {
> +		/* Fallback for transceiver */
> +		phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> +		if (IS_ERR_OR_NULL(phy)) {
> +			dev_err(&pdev->dev, "no platform data or transceiver defined\n");
> +			return -EPROBE_DEFER;
> +		} else {
> +			hsotg->phy = phy;
> +		}
> +	} else {
> +		hsotg->plat = plat;
> +	}

I think this should be the other way around, meaning you try to grab the
phy, if you can't, then you fallback to pdata.

-- 
balbi

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[PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Felipe Balbi]

Hi,

On Tue, Oct 30, 2012 at 10:27:34AM +0530, Praveen Paneri wrote:
> @@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
>  	int ret;
>  	int i;
>  
> -	plat = pdev->dev.platform_data;
> -	if (!plat) {
> -		dev_err(&pdev->dev, "no platform data defined\n");
> -		return -EINVAL;
> -	}
> -
>  	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg), GFP_KERNEL);
>  	if (!hsotg) {
>  		dev_err(dev, "cannot get memory\n");
>  		return -ENOMEM;
>  	}
>  
> +	plat = pdev->dev.platform_data;
> +	if (!plat) {
> +		/* Fallback for transceiver */
> +		phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> +		if (IS_ERR_OR_NULL(phy)) {
> +			dev_err(&pdev->dev, "no platform data or transceiver defined\n");
> +			return -EPROBE_DEFER;
> +		} else {
> +			hsotg->phy = phy;
> +		}
> +	} else {
> +		hsotg->plat = plat;
> +	}

I think this should be the other way around, meaning you try to grab the
phy, if you can't, then you fallback to pdata.

-- 
balbi
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Re: [PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Lukasz Majewski]

Hi Felipe,

> Hi,
> 
> On Tue, Oct 30, 2012 at 10:27:34AM +0530, Praveen Paneri wrote:
> > @@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct
> > platform_device *pdev) int ret;
> >  	int i;
> >  
> > -	plat = pdev->dev.platform_data;
> > -	if (!plat) {
> > -		dev_err(&pdev->dev, "no platform data defined\n");
> > -		return -EINVAL;
> > -	}
> > -
> >  	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg),
> > GFP_KERNEL); if (!hsotg) {
> >  		dev_err(dev, "cannot get memory\n");
> >  		return -ENOMEM;
> >  	}
> >  
> > +	plat = pdev->dev.platform_data;
> > +	if (!plat) {
> > +		/* Fallback for transceiver */
> > +		phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> > +		if (IS_ERR_OR_NULL(phy)) {
> > +			dev_err(&pdev->dev, "no platform data or
> > transceiver defined\n");
> > +			return -EPROBE_DEFER;
> > +		} else {
> > +			hsotg->phy = phy;
> > +		}
> > +	} else {
> > +		hsotg->plat = plat;
> > +	}
> 
> I think this should be the other way around, meaning you try to grab
> the phy, if you can't, then you fallback to pdata.
> 

I agree.

The new approach is to use new PHY driver. And only when failed we
shall use legacy approach.

-- 
Best regards,

Lukasz Majewski

Samsung Poland R&D Center | Linux Platform Group
--
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[PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Lukasz Majewski]

Hi Felipe,

> Hi,
> 
> On Tue, Oct 30, 2012 at 10:27:34AM +0530, Praveen Paneri wrote:
> > @@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct
> > platform_device *pdev) int ret;
> >  	int i;
> >  
> > -	plat = pdev->dev.platform_data;
> > -	if (!plat) {
> > -		dev_err(&pdev->dev, "no platform data defined\n");
> > -		return -EINVAL;
> > -	}
> > -
> >  	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg),
> > GFP_KERNEL); if (!hsotg) {
> >  		dev_err(dev, "cannot get memory\n");
> >  		return -ENOMEM;
> >  	}
> >  
> > +	plat = pdev->dev.platform_data;
> > +	if (!plat) {
> > +		/* Fallback for transceiver */
> > +		phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> > +		if (IS_ERR_OR_NULL(phy)) {
> > +			dev_err(&pdev->dev, "no platform data or
> > transceiver defined\n");
> > +			return -EPROBE_DEFER;
> > +		} else {
> > +			hsotg->phy = phy;
> > +		}
> > +	} else {
> > +		hsotg->plat = plat;
> > +	}
> 
> I think this should be the other way around, meaning you try to grab
> the phy, if you can't, then you fallback to pdata.
> 

I agree.

The new approach is to use new PHY driver. And only when failed we
shall use legacy approach.

-- 
Best regards,

Lukasz Majewski

Samsung Poland R&D Center | Linux Platform Group

Re: [PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Praveen Paneri]

On Wed, Oct 31, 2012 at 8:14 PM, Lukasz Majewski <l.majewski@samsung.com> wrote:
> Hi Felipe,
>
>> Hi,
>>
>> On Tue, Oct 30, 2012 at 10:27:34AM +0530, Praveen Paneri wrote:
>> > @@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct
>> > platform_device *pdev) int ret;
>> >     int i;
>> >
>> > -   plat = pdev->dev.platform_data;
>> > -   if (!plat) {
>> > -           dev_err(&pdev->dev, "no platform data defined\n");
>> > -           return -EINVAL;
>> > -   }
>> > -
>> >     hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg),
>> > GFP_KERNEL); if (!hsotg) {
>> >             dev_err(dev, "cannot get memory\n");
>> >             return -ENOMEM;
>> >     }
>> >
>> > +   plat = pdev->dev.platform_data;
>> > +   if (!plat) {
>> > +           /* Fallback for transceiver */
>> > +           phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
>> > +           if (IS_ERR_OR_NULL(phy)) {
>> > +                   dev_err(&pdev->dev, "no platform data or
>> > transceiver defined\n");
>> > +                   return -EPROBE_DEFER;
>> > +           } else {
>> > +                   hsotg->phy = phy;
>> > +           }
>> > +   } else {
>> > +           hsotg->plat = plat;
>> > +   }
>>
>> I think this should be the other way around, meaning you try to grab
>> the phy, if you can't, then you fallback to pdata.
Agreed! Will swap it

regards,
Praveen
>>
>
> I agree.
>
> The new approach is to use new PHY driver. And only when failed we
> shall use legacy approach.
>
> --
> Best regards,
>
> Lukasz Majewski
>
> Samsung Poland R&D Center | Linux Platform Group
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH v7 2/5] usb: s3c-hsotg: Adding phy driver support

[Praveen Paneri]

On Wed, Oct 31, 2012 at 8:14 PM, Lukasz Majewski <l.majewski@samsung.com> wrote:
> Hi Felipe,
>
>> Hi,
>>
>> On Tue, Oct 30, 2012 at 10:27:34AM +0530, Praveen Paneri wrote:
>> > @@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct
>> > platform_device *pdev) int ret;
>> >     int i;
>> >
>> > -   plat = pdev->dev.platform_data;
>> > -   if (!plat) {
>> > -           dev_err(&pdev->dev, "no platform data defined\n");
>> > -           return -EINVAL;
>> > -   }
>> > -
>> >     hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg),
>> > GFP_KERNEL); if (!hsotg) {
>> >             dev_err(dev, "cannot get memory\n");
>> >             return -ENOMEM;
>> >     }
>> >
>> > +   plat = pdev->dev.platform_data;
>> > +   if (!plat) {
>> > +           /* Fallback for transceiver */
>> > +           phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
>> > +           if (IS_ERR_OR_NULL(phy)) {
>> > +                   dev_err(&pdev->dev, "no platform data or
>> > transceiver defined\n");
>> > +                   return -EPROBE_DEFER;
>> > +           } else {
>> > +                   hsotg->phy = phy;
>> > +           }
>> > +   } else {
>> > +           hsotg->plat = plat;
>> > +   }
>>
>> I think this should be the other way around, meaning you try to grab
>> the phy, if you can't, then you fallback to pdata.
Agreed! Will swap it

regards,
Praveen
>>
>
> I agree.
>
> The new approach is to use new PHY driver. And only when failed we
> shall use legacy approach.
>
> --
> Best regards,
>
> Lukasz Majewski
>
> Samsung Poland R&D Center | Linux Platform Group
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 2/5] usb: s3c-hsotg: Adding phy driver support

[Praveen Paneri]

Adding the phy driver support to hsotg driver. Keeping the platform data
for continuing the smooth operation for boards which still uses it.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 drivers/usb/gadget/s3c-hsotg.c |   37 +++++++++++++++++++++++++++----------
 1 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 6f696ee..bc30a2d 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -32,6 +32,7 @@
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/phy.h>
 #include <linux/platform_data/s3c-hsotg.h>
 
 #include <mach/map.h>
@@ -133,7 +134,9 @@ struct s3c_hsotg_ep {
  * struct s3c_hsotg - driver state.
  * @dev: The parent device supplied to the probe function
  * @driver: USB gadget driver
- * @plat: The platform specific configuration data.
+ * @phy: The otg phy transceiver structure for phy control.
+ * @plat: The platform specific configuration data. This can be removed once
+ * all SoCs support usb transceiver.
  * @regs: The memory area mapped for accessing registers.
  * @irq: The IRQ number we are using
  * @supplies: Definition of USB power supplies
@@ -153,6 +156,7 @@ struct s3c_hsotg_ep {
 struct s3c_hsotg {
 	struct device		 *dev;
 	struct usb_gadget_driver *driver;
+	struct usb_phy		*phy;
 	struct s3c_hsotg_plat	 *plat;
 
 	spinlock_t              lock;
@@ -2854,7 +2858,10 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg)
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
 	dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
-	if (hsotg->plat->phy_init)
+
+	if (hsotg->phy)
+		usb_phy_init(hsotg->phy);
+	else if (hsotg->plat->phy_init)
 		hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
 }
 
@@ -2869,7 +2876,9 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg)
 {
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
-	if (hsotg->plat->phy_exit)
+	if (hsotg->phy)
+		usb_phy_shutdown(hsotg->phy);
+	else if (hsotg->plat->phy_exit)
 		hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
 }
 
@@ -3493,6 +3502,7 @@ static void s3c_hsotg_release(struct device *dev)
 static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 {
 	struct s3c_hsotg_plat *plat = pdev->dev.platform_data;
+	struct usb_phy *phy;
 	struct device *dev = &pdev->dev;
 	struct s3c_hsotg_ep *eps;
 	struct s3c_hsotg *hsotg;
@@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 	int ret;
 	int i;
 
-	plat = pdev->dev.platform_data;
-	if (!plat) {
-		dev_err(&pdev->dev, "no platform data defined\n");
-		return -EINVAL;
-	}
-
 	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg), GFP_KERNEL);
 	if (!hsotg) {
 		dev_err(dev, "cannot get memory\n");
 		return -ENOMEM;
 	}
 
+	phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+	if (IS_ERR_OR_NULL(phy)) {
+		/* Fallback for pdata */
+		plat = pdev->dev.platform_data;
+		if (!plat) {
+			dev_err(&pdev->dev, "no platform data or transceiver defined\n");
+			return -EPROBE_DEFER;
+		} else {
+			hsotg->plat = plat;
+		}
+	} else {
+		hsotg->phy = phy;
+	}
+
 	hsotg->dev = dev;
-	hsotg->plat = plat;
 
 	hsotg->clk = devm_clk_get(&pdev->dev, "otg");
 	if (IS_ERR(hsotg->clk)) {
-- 
1.7.1

[PATCH 2/5] usb: s3c-hsotg: Adding phy driver support

[Praveen Paneri]

Adding the phy driver support to hsotg driver. Keeping the platform data
for continuing the smooth operation for boards which still uses it.

Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
---
 drivers/usb/gadget/s3c-hsotg.c |   37 +++++++++++++++++++++++++++----------
 1 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 6f696ee..bc30a2d 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -32,6 +32,7 @@
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/phy.h>
 #include <linux/platform_data/s3c-hsotg.h>
 
 #include <mach/map.h>
@@ -133,7 +134,9 @@ struct s3c_hsotg_ep {
  * struct s3c_hsotg - driver state.
  * @dev: The parent device supplied to the probe function
  * @driver: USB gadget driver
- * @plat: The platform specific configuration data.
+ * @phy: The otg phy transceiver structure for phy control.
+ * @plat: The platform specific configuration data. This can be removed once
+ * all SoCs support usb transceiver.
  * @regs: The memory area mapped for accessing registers.
  * @irq: The IRQ number we are using
  * @supplies: Definition of USB power supplies
@@ -153,6 +156,7 @@ struct s3c_hsotg_ep {
 struct s3c_hsotg {
 	struct device		 *dev;
 	struct usb_gadget_driver *driver;
+	struct usb_phy		*phy;
 	struct s3c_hsotg_plat	 *plat;
 
 	spinlock_t              lock;
@@ -2854,7 +2858,10 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg)
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
 	dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
-	if (hsotg->plat->phy_init)
+
+	if (hsotg->phy)
+		usb_phy_init(hsotg->phy);
+	else if (hsotg->plat->phy_init)
 		hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
 }
 
@@ -2869,7 +2876,9 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg)
 {
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
 
-	if (hsotg->plat->phy_exit)
+	if (hsotg->phy)
+		usb_phy_shutdown(hsotg->phy);
+	else if (hsotg->plat->phy_exit)
 		hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
 }
 
@@ -3493,6 +3502,7 @@ static void s3c_hsotg_release(struct device *dev)
 static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 {
 	struct s3c_hsotg_plat *plat = pdev->dev.platform_data;
+	struct usb_phy *phy;
 	struct device *dev = &pdev->dev;
 	struct s3c_hsotg_ep *eps;
 	struct s3c_hsotg *hsotg;
@@ -3501,20 +3511,27 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 	int ret;
 	int i;
 
-	plat = pdev->dev.platform_data;
-	if (!plat) {
-		dev_err(&pdev->dev, "no platform data defined\n");
-		return -EINVAL;
-	}
-
 	hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg), GFP_KERNEL);
 	if (!hsotg) {
 		dev_err(dev, "cannot get memory\n");
 		return -ENOMEM;
 	}
 
+	phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+	if (IS_ERR_OR_NULL(phy)) {
+		/* Fallback for pdata */
+		plat = pdev->dev.platform_data;
+		if (!plat) {
+			dev_err(&pdev->dev, "no platform data or transceiver defined\n");
+			return -EPROBE_DEFER;
+		} else {
+			hsotg->plat = plat;
+		}
+	} else {
+		hsotg->phy = phy;
+	}
+
 	hsotg->dev = dev;
-	hsotg->plat = plat;
 
 	hsotg->clk = devm_clk_get(&pdev->dev, "otg");
 	if (IS_ERR(hsotg->clk)) {
-- 
1.7.1

Re: [PATCH v7 1/5] usb: phy: samsung: Introducing usb phy driver for hsotg

[Vivek Gautam]

Hi all,


On Tue, Oct 30, 2012 at 10:27 AM, Praveen Paneri <p.paneri-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote:
>
> This driver uses usb phy framework to interact with s3c-hsotg. Supports
> phy_init and phy_shutdown functions to enable/disable usb phy. Support
> will be extended to host controllers and more Samsung SoCs.
>
> Signed-off-by: Praveen Paneri <p.paneri-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> Acked-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
> Acked-by: Kyungmin Park <kyungmin.park-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>

I have tested this patch-series for S3C6410 and S5PV310 for gadget functioning.
Looks good to me.

Tested-by: Vivek Gautam <gautam.vivek-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>

> ---
>  .../devicetree/bindings/usb/samsung-usbphy.txt     |   11 +
>  drivers/usb/phy/Kconfig                            |    8 +
>  drivers/usb/phy/Makefile                           |    1 +
>  drivers/usb/phy/samsung-usbphy.c                   |  360 ++++++++++++++++++++
>  include/linux/platform_data/samsung-usbphy.h       |   27 ++
>  5 files changed, 407 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/usb/samsung-usbphy.txt
>  create mode 100644 drivers/usb/phy/samsung-usbphy.c
>  create mode 100644 include/linux/platform_data/samsung-usbphy.h
>
> diff --git a/Documentation/devicetree/bindings/usb/samsung-usbphy.txt b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
> new file mode 100644
> index 0000000..7b26e2d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
> @@ -0,0 +1,11 @@
> +* Samsung's usb phy transceiver
> +
> +The Samsung's phy transceiver is used for controlling usb otg phy for
> +s3c-hsotg usb device controller.
> +TODO: Adding the PHY binding with controller(s) according to the under
> +developement generic PHY driver.
> +
> +Required properties:
> +- compatible : should be "samsung,exynos4210-usbphy"
> +- reg : base physical address of the phy registers and length of memory mapped
> +       region.
> diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
> index 63c339b..313685f 100644
> --- a/drivers/usb/phy/Kconfig
> +++ b/drivers/usb/phy/Kconfig
> @@ -32,3 +32,11 @@ config MV_U3D_PHY
>         help
>           Enable this to support Marvell USB 3.0 phy controller for Marvell
>           SoC.
> +
> +config SAMSUNG_USBPHY
> +       bool "Samsung USB PHY controller Driver"
> +       depends on USB_S3C_HSOTG
> +       select USB_OTG_UTILS
> +       help
> +         Enable this to support Samsung USB phy controller for samsung
> +         SoCs.
> diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
> index b069f29..55dcfc1 100644
> --- a/drivers/usb/phy/Makefile
> +++ b/drivers/usb/phy/Makefile
> @@ -8,3 +8,4 @@ obj-$(CONFIG_OMAP_USB2)                 += omap-usb2.o
>  obj-$(CONFIG_USB_ISP1301)              += isp1301.o
>  obj-$(CONFIG_MV_U3D_PHY)               += mv_u3d_phy.o
>  obj-$(CONFIG_USB_EHCI_TEGRA)   += tegra_usb_phy.o
> +obj-$(CONFIG_SAMSUNG_USBPHY)           += samsung-usbphy.o
> diff --git a/drivers/usb/phy/samsung-usbphy.c b/drivers/usb/phy/samsung-usbphy.c
> new file mode 100644
> index 0000000..3c84aab
> --- /dev/null
> +++ b/drivers/usb/phy/samsung-usbphy.c
> @@ -0,0 +1,360 @@
> +/* linux/drivers/usb/phy/samsung-usbphy.c
> + *
> + * Copyright (c) 2012 Samsung Electronics Co., Ltd.
> + *              http://www.samsung.com
> + *
> + * Author: Praveen Paneri <p.paneri-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> + *
> + * Samsung USB2.0 High-speed OTG transceiver, talks to S3C HS OTG controller
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/clk.h>
> +#include <linux/delay.h>
> +#include <linux/err.h>
> +#include <linux/io.h>
> +#include <linux/of.h>
> +#include <linux/usb/otg.h>
> +#include <linux/platform_data/samsung-usbphy.h>
> +
> +/* Register definitions */
> +
> +#define SAMSUNG_PHYPWR                         (0x00)
> +
> +#define PHYPWR_NORMAL_MASK                     (0x19 << 0)
> +#define PHYPWR_OTG_DISABLE                     (0x1 << 4)
> +#define PHYPWR_ANALOG_POWERDOWN                        (0x1 << 3)
> +#define PHYPWR_FORCE_SUSPEND                   (0x1 << 1)
> +/* For Exynos4 */
> +#define PHYPWR_NORMAL_MASK_PHY0                        (0x39 << 0)
> +#define PHYPWR_SLEEP_PHY0                      (0x1 << 5)
> +
> +#define SAMSUNG_PHYCLK                         (0x04)
> +
> +#define PHYCLK_MODE_USB11                      (0x1 << 6)
> +#define PHYCLK_EXT_OSC                         (0x1 << 5)
> +#define PHYCLK_COMMON_ON_N                     (0x1 << 4)
> +#define PHYCLK_ID_PULL                         (0x1 << 2)
> +#define PHYCLK_CLKSEL_MASK                     (0x3 << 0)
> +#define PHYCLK_CLKSEL_48M                      (0x0 << 0)
> +#define PHYCLK_CLKSEL_12M                      (0x2 << 0)
> +#define PHYCLK_CLKSEL_24M                      (0x3 << 0)
> +
> +#define SAMSUNG_RSTCON                         (0x08)
> +
> +#define RSTCON_PHYLINK_SWRST                   (0x1 << 2)
> +#define RSTCON_HLINK_SWRST                     (0x1 << 1)
> +#define RSTCON_SWRST                           (0x1 << 0)
> +
> +#ifndef MHZ
> +#define MHZ (1000*1000)
> +#endif
> +
> +enum samsung_cpu_type {
> +       TYPE_S3C64XX,
> +       TYPE_EXYNOS4210,
> +};
> +
> +/*
> + * struct samsung_usbphy - transceiver driver state
> + * @phy: transceiver structure
> + * @plat: platform data
> + * @dev: The parent device supplied to the probe function
> + * @clk: usb phy clock
> + * @regs: usb phy register memory base
> + * @ref_clk_freq: reference clock frequency selection
> + * @cpu_type: machine identifier
> + */
> +struct samsung_usbphy {
> +       struct usb_phy  phy;
> +       struct samsung_usbphy_data *plat;
> +       struct device   *dev;
> +       struct clk      *clk;
> +       void __iomem    *regs;
> +       int             ref_clk_freq;
> +       int             cpu_type;
> +};
> +
> +#define phy_to_sphy(x)         container_of((x), struct samsung_usbphy, phy)
> +
> +/*
> + * Returns reference clock frequency selection value
> + */
> +static int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy)
> +{
> +       struct clk *ref_clk;
> +       int refclk_freq = 0;
> +
> +       ref_clk = clk_get(sphy->dev, "xusbxti");
> +       if (IS_ERR(ref_clk)) {
> +               dev_err(sphy->dev, "Failed to get reference clock\n");
> +               return PTR_ERR(ref_clk);
> +       }
> +
> +       switch (clk_get_rate(ref_clk)) {
> +       case 12 * MHZ:
> +               refclk_freq = PHYCLK_CLKSEL_12M;
> +               break;
> +       case 24 * MHZ:
> +               refclk_freq = PHYCLK_CLKSEL_24M;
> +               break;
> +       case 48 * MHZ:
> +               refclk_freq = PHYCLK_CLKSEL_48M;
> +               break;
> +       default:
> +               if (sphy->cpu_type == TYPE_S3C64XX)
> +                       refclk_freq = PHYCLK_CLKSEL_48M;
> +               else
> +                       refclk_freq = PHYCLK_CLKSEL_24M;
> +               break;
> +       }
> +       clk_put(ref_clk);
> +
> +       return refclk_freq;
> +}
> +
> +static void samsung_usbphy_enable(struct samsung_usbphy *sphy)
> +{
> +       void __iomem *regs = sphy->regs;
> +       u32 phypwr;
> +       u32 phyclk;
> +       u32 rstcon;
> +
> +       /* set clock frequency for PLL */
> +       phyclk = sphy->ref_clk_freq;
> +       phypwr = readl(regs + SAMSUNG_PHYPWR);
> +       rstcon = readl(regs + SAMSUNG_RSTCON);
> +
> +       switch (sphy->cpu_type) {
> +       case TYPE_S3C64XX:
> +               phyclk &= ~PHYCLK_COMMON_ON_N;
> +               phypwr &= ~PHYPWR_NORMAL_MASK;
> +               rstcon |= RSTCON_SWRST;
> +               break;
> +       case TYPE_EXYNOS4210:
> +               phypwr &= ~PHYPWR_NORMAL_MASK_PHY0;
> +               rstcon |= RSTCON_SWRST;
> +       default:
> +               break;
> +       }
> +
> +       writel(phyclk, regs + SAMSUNG_PHYCLK);
> +       /* set to normal of PHY0 */
> +       writel(phypwr, regs + SAMSUNG_PHYPWR);
> +       /* reset all ports of PHY and Link */
> +       writel(rstcon, regs + SAMSUNG_RSTCON);
> +       udelay(10);
> +       rstcon &= ~RSTCON_SWRST;
> +       writel(rstcon, regs + SAMSUNG_RSTCON);
> +}
> +
> +static void samsung_usbphy_disable(struct samsung_usbphy *sphy)
> +{
> +       void __iomem *regs = sphy->regs;
> +       u32 phypwr;
> +
> +       phypwr = readl(regs + SAMSUNG_PHYPWR);
> +
> +       switch (sphy->cpu_type) {
> +       case TYPE_S3C64XX:
> +               phypwr |= PHYPWR_NORMAL_MASK;
> +               break;
> +       case TYPE_EXYNOS4210:
> +               phypwr |= PHYPWR_NORMAL_MASK_PHY0;
> +       default:
> +               break;
> +       }
> +
> +       /* unset to normal of PHY0 */
> +       writel(phypwr, regs + SAMSUNG_PHYPWR);
> +}
> +
> +/*
> + * The function passed to the usb driver for phy initialization
> + */
> +static int samsung_usbphy_init(struct usb_phy *phy)
> +{
> +       struct samsung_usbphy *sphy;
> +       int ret = 0;
> +
> +       sphy = phy_to_sphy(phy);
> +
> +       /* Enable the phy clock */
> +       ret = clk_prepare_enable(sphy->clk);
> +       if (ret) {
> +               dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
> +               return ret;
> +       }
> +
> +       /* Disable phy isolation */
> +       if (sphy->plat && sphy->plat->pmu_isolation)
> +               sphy->plat->pmu_isolation(false);
> +
> +       /* Initialize usb phy registers */
> +       samsung_usbphy_enable(sphy);
> +
> +       /* Disable the phy clock */
> +       clk_disable_unprepare(sphy->clk);
> +       return ret;
> +}
> +
> +/*
> + * The function passed to the usb driver for phy shutdown
> + */
> +static void samsung_usbphy_shutdown(struct usb_phy *phy)
> +{
> +       struct samsung_usbphy *sphy;
> +
> +       sphy = phy_to_sphy(phy);
> +
> +       if (clk_prepare_enable(sphy->clk)) {
> +               dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
> +               return;
> +       }
> +
> +       /* De-initialize usb phy registers */
> +       samsung_usbphy_disable(sphy);
> +
> +       /* Enable phy isolation */
> +       if (sphy->plat && sphy->plat->pmu_isolation)
> +               sphy->plat->pmu_isolation(true);
> +
> +       clk_disable_unprepare(sphy->clk);
> +}
> +
> +static const struct of_device_id samsung_usbphy_dt_match[];
> +
> +static inline int samsung_usbphy_get_driver_data(struct platform_device *pdev)
> +{
> +       if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
> +               int data;
> +               const struct of_device_id *match;
> +               match = of_match_node(samsung_usbphy_dt_match,
> +                                                       pdev->dev.of_node);
> +               data = (int) match->data;
> +               return data;
> +       }
> +
> +       return platform_get_device_id(pdev)->driver_data;
> +}
> +
> +static int __devinit samsung_usbphy_probe(struct platform_device *pdev)
> +{
> +       struct samsung_usbphy *sphy;
> +       struct samsung_usbphy_data *pdata;
> +       struct device *dev = &pdev->dev;
> +       struct resource *phy_mem;
> +       void __iomem    *phy_base;
> +       struct clk *clk;
> +       int     ret = 0;
> +
> +       pdata = pdev->dev.platform_data;
> +       if (!pdata) {
> +               dev_err(&pdev->dev, "%s: no platform data defined\n", __func__);
> +               return -EINVAL;
> +       }
> +
> +       phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +       if (!phy_mem) {
> +               dev_err(dev, "%s: missing mem resource\n", __func__);
> +               return -ENODEV;
> +       }
> +
> +       phy_base = devm_request_and_ioremap(dev, phy_mem);
> +       if (!phy_base) {
> +               dev_err(dev, "%s: register mapping failed\n", __func__);
> +               return -ENXIO;
> +       }
> +
> +       sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL);
> +       if (!sphy)
> +               return -ENOMEM;
> +
> +       clk = devm_clk_get(dev, "otg");
> +       if (IS_ERR(clk)) {
> +               dev_err(dev, "Failed to get otg clock\n");
> +               return PTR_ERR(clk);
> +       }
> +
> +       sphy->dev               = &pdev->dev;
> +       sphy->plat              = pdata;
> +       sphy->regs              = phy_base;
> +       sphy->clk               = clk;
> +       sphy->phy.dev           = sphy->dev;
> +       sphy->phy.label         = "samsung-usbphy";
> +       sphy->phy.init          = samsung_usbphy_init;
> +       sphy->phy.shutdown      = samsung_usbphy_shutdown;
> +       sphy->cpu_type          = samsung_usbphy_get_driver_data(pdev);
> +       sphy->ref_clk_freq      = samsung_usbphy_get_refclk_freq(sphy);
> +
> +       platform_set_drvdata(pdev, sphy);
> +
> +       ret = usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2);
> +       return ret;
> +}
> +
> +static int __exit samsung_usbphy_remove(struct platform_device *pdev)
> +{
> +       struct samsung_usbphy *sphy = platform_get_drvdata(pdev);
> +
> +       usb_remove_phy(&sphy->phy);
> +
> +       return 0;
> +}
> +
> +#ifdef CONFIG_OF
> +static const struct of_device_id samsung_usbphy_dt_match[] = {
> +       {
> +               .compatible = "samsung,s3c64xx-usbphy",
> +               .data = (void *)TYPE_S3C64XX,
> +       }, {
> +               .compatible = "samsung,exynos4210-usbphy",
> +               .data = (void *)TYPE_EXYNOS4210,
> +       },
> +       {},
> +};
> +MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match);
> +#else
> +#define samsung_usbphy_dt_match NULL
> +#endif
> +
> +static struct platform_device_id samsung_usbphy_driver_ids[] = {
> +       {
> +               .name           = "s3c64xx-usbphy",
> +               .driver_data    = TYPE_S3C64XX,
> +       }, {
> +               .name           = "exynos4210-usbphy",
> +               .driver_data    = TYPE_EXYNOS4210,
> +       },
> +       {},
> +};
> +
> +MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids);
> +
> +static struct platform_driver samsung_usbphy_driver = {
> +       .probe          = samsung_usbphy_probe,
> +       .remove         = __devexit_p(samsung_usbphy_remove),
> +       .id_table       = samsung_usbphy_driver_ids,
> +       .driver         = {
> +               .name   = "samsung-usbphy",
> +               .owner  = THIS_MODULE,
> +               .of_match_table = samsung_usbphy_dt_match,
> +       },
> +};
> +
> +module_platform_driver(samsung_usbphy_driver);
> +
> +MODULE_DESCRIPTION("Samsung USB phy controller");
> +MODULE_AUTHOR("Praveen Paneri <p.paneri-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>");
> +MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:samsung-usbphy");
> diff --git a/include/linux/platform_data/samsung-usbphy.h b/include/linux/platform_data/samsung-usbphy.h
> new file mode 100644
> index 0000000..1bd24cb
> --- /dev/null
> +++ b/include/linux/platform_data/samsung-usbphy.h
> @@ -0,0 +1,27 @@
> +/*
> + * Copyright (C) 2012 Samsung Electronics Co.Ltd
> + *             http://www.samsung.com/
> + * Author: Praveen Paneri <p.paneri-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> + *
> + * Defines platform data for samsung usb phy driver.
> + *
> + * This program is free software; you can redistribute  it and/or modify it
> + * under  the terms of  the GNU General  Public License as published by the
> + * Free Software Foundation;  either version 2 of the  License, or (at your
> + * option) any later version.
> + */
> +
> +#ifndef __SAMSUNG_USBPHY_PLATFORM_H
> +#define __SAMSUNG_USBPHY_PLATFORM_H
> +
> +/**
> + * samsung_usbphy_data - Platform data for USB PHY driver.
> + * @pmu_isolation: Function to control usb phy isolation in PMU.
> + */
> +struct samsung_usbphy_data {
> +       void (*pmu_isolation)(int on);
> +};
> +
> +extern void samsung_usbphy_set_pdata(struct samsung_usbphy_data *pd);
> +
> +#endif /* __SAMSUNG_USBPHY_PLATFORM_H */
> --
> 1.7.1
>
> --
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> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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--
Thanks & Regards
Vivek
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[PATCH v7 1/5] usb: phy: samsung: Introducing usb phy driver for hsotg

[Vivek Gautam]

Hi all,


On Tue, Oct 30, 2012 at 10:27 AM, Praveen Paneri <p.paneri@samsung.com> wrote:
>
> This driver uses usb phy framework to interact with s3c-hsotg. Supports
> phy_init and phy_shutdown functions to enable/disable usb phy. Support
> will be extended to host controllers and more Samsung SoCs.
>
> Signed-off-by: Praveen Paneri <p.paneri@samsung.com>
> Acked-by: Heiko Stuebner <heiko@sntech.de>
> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>

I have tested this patch-series for S3C6410 and S5PV310 for gadget functioning.
Looks good to me.

Tested-by: Vivek Gautam <gautam.vivek@samsung.com>

> ---
>  .../devicetree/bindings/usb/samsung-usbphy.txt     |   11 +
>  drivers/usb/phy/Kconfig                            |    8 +
>  drivers/usb/phy/Makefile                           |    1 +
>  drivers/usb/phy/samsung-usbphy.c                   |  360 ++++++++++++++++++++
>  include/linux/platform_data/samsung-usbphy.h       |   27 ++
>  5 files changed, 407 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/usb/samsung-usbphy.txt
>  create mode 100644 drivers/usb/phy/samsung-usbphy.c
>  create mode 100644 include/linux/platform_data/samsung-usbphy.h
>
> diff --git a/Documentation/devicetree/bindings/usb/samsung-usbphy.txt b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
> new file mode 100644
> index 0000000..7b26e2d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
> @@ -0,0 +1,11 @@
> +* Samsung's usb phy transceiver
> +
> +The Samsung's phy transceiver is used for controlling usb otg phy for
> +s3c-hsotg usb device controller.
> +TODO: Adding the PHY binding with controller(s) according to the under
> +developement generic PHY driver.
> +
> +Required properties:
> +- compatible : should be "samsung,exynos4210-usbphy"
> +- reg : base physical address of the phy registers and length of memory mapped
> +       region.
> diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
> index 63c339b..313685f 100644
> --- a/drivers/usb/phy/Kconfig
> +++ b/drivers/usb/phy/Kconfig
> @@ -32,3 +32,11 @@ config MV_U3D_PHY
>         help
>           Enable this to support Marvell USB 3.0 phy controller for Marvell
>           SoC.
> +
> +config SAMSUNG_USBPHY
> +       bool "Samsung USB PHY controller Driver"
> +       depends on USB_S3C_HSOTG
> +       select USB_OTG_UTILS
> +       help
> +         Enable this to support Samsung USB phy controller for samsung
> +         SoCs.
> diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
> index b069f29..55dcfc1 100644
> --- a/drivers/usb/phy/Makefile
> +++ b/drivers/usb/phy/Makefile
> @@ -8,3 +8,4 @@ obj-$(CONFIG_OMAP_USB2)                 += omap-usb2.o
>  obj-$(CONFIG_USB_ISP1301)              += isp1301.o
>  obj-$(CONFIG_MV_U3D_PHY)               += mv_u3d_phy.o
>  obj-$(CONFIG_USB_EHCI_TEGRA)   += tegra_usb_phy.o
> +obj-$(CONFIG_SAMSUNG_USBPHY)           += samsung-usbphy.o
> diff --git a/drivers/usb/phy/samsung-usbphy.c b/drivers/usb/phy/samsung-usbphy.c
> new file mode 100644
> index 0000000..3c84aab
> --- /dev/null
> +++ b/drivers/usb/phy/samsung-usbphy.c
> @@ -0,0 +1,360 @@
> +/* linux/drivers/usb/phy/samsung-usbphy.c
> + *
> + * Copyright (c) 2012 Samsung Electronics Co., Ltd.
> + *              http://www.samsung.com
> + *
> + * Author: Praveen Paneri <p.paneri@samsung.com>
> + *
> + * Samsung USB2.0 High-speed OTG transceiver, talks to S3C HS OTG controller
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/clk.h>
> +#include <linux/delay.h>
> +#include <linux/err.h>
> +#include <linux/io.h>
> +#include <linux/of.h>
> +#include <linux/usb/otg.h>
> +#include <linux/platform_data/samsung-usbphy.h>
> +
> +/* Register definitions */
> +
> +#define SAMSUNG_PHYPWR                         (0x00)
> +
> +#define PHYPWR_NORMAL_MASK                     (0x19 << 0)
> +#define PHYPWR_OTG_DISABLE                     (0x1 << 4)
> +#define PHYPWR_ANALOG_POWERDOWN                        (0x1 << 3)
> +#define PHYPWR_FORCE_SUSPEND                   (0x1 << 1)
> +/* For Exynos4 */
> +#define PHYPWR_NORMAL_MASK_PHY0                        (0x39 << 0)
> +#define PHYPWR_SLEEP_PHY0                      (0x1 << 5)
> +
> +#define SAMSUNG_PHYCLK                         (0x04)
> +
> +#define PHYCLK_MODE_USB11                      (0x1 << 6)
> +#define PHYCLK_EXT_OSC                         (0x1 << 5)
> +#define PHYCLK_COMMON_ON_N                     (0x1 << 4)
> +#define PHYCLK_ID_PULL                         (0x1 << 2)
> +#define PHYCLK_CLKSEL_MASK                     (0x3 << 0)
> +#define PHYCLK_CLKSEL_48M                      (0x0 << 0)
> +#define PHYCLK_CLKSEL_12M                      (0x2 << 0)
> +#define PHYCLK_CLKSEL_24M                      (0x3 << 0)
> +
> +#define SAMSUNG_RSTCON                         (0x08)
> +
> +#define RSTCON_PHYLINK_SWRST                   (0x1 << 2)
> +#define RSTCON_HLINK_SWRST                     (0x1 << 1)
> +#define RSTCON_SWRST                           (0x1 << 0)
> +
> +#ifndef MHZ
> +#define MHZ (1000*1000)
> +#endif
> +
> +enum samsung_cpu_type {
> +       TYPE_S3C64XX,
> +       TYPE_EXYNOS4210,
> +};
> +
> +/*
> + * struct samsung_usbphy - transceiver driver state
> + * @phy: transceiver structure
> + * @plat: platform data
> + * @dev: The parent device supplied to the probe function
> + * @clk: usb phy clock
> + * @regs: usb phy register memory base
> + * @ref_clk_freq: reference clock frequency selection
> + * @cpu_type: machine identifier
> + */
> +struct samsung_usbphy {
> +       struct usb_phy  phy;
> +       struct samsung_usbphy_data *plat;
> +       struct device   *dev;
> +       struct clk      *clk;
> +       void __iomem    *regs;
> +       int             ref_clk_freq;
> +       int             cpu_type;
> +};
> +
> +#define phy_to_sphy(x)         container_of((x), struct samsung_usbphy, phy)
> +
> +/*
> + * Returns reference clock frequency selection value
> + */
> +static int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy)
> +{
> +       struct clk *ref_clk;
> +       int refclk_freq = 0;
> +
> +       ref_clk = clk_get(sphy->dev, "xusbxti");
> +       if (IS_ERR(ref_clk)) {
> +               dev_err(sphy->dev, "Failed to get reference clock\n");
> +               return PTR_ERR(ref_clk);
> +       }
> +
> +       switch (clk_get_rate(ref_clk)) {
> +       case 12 * MHZ:
> +               refclk_freq = PHYCLK_CLKSEL_12M;
> +               break;
> +       case 24 * MHZ:
> +               refclk_freq = PHYCLK_CLKSEL_24M;
> +               break;
> +       case 48 * MHZ:
> +               refclk_freq = PHYCLK_CLKSEL_48M;
> +               break;
> +       default:
> +               if (sphy->cpu_type == TYPE_S3C64XX)
> +                       refclk_freq = PHYCLK_CLKSEL_48M;
> +               else
> +                       refclk_freq = PHYCLK_CLKSEL_24M;
> +               break;
> +       }
> +       clk_put(ref_clk);
> +
> +       return refclk_freq;
> +}
> +
> +static void samsung_usbphy_enable(struct samsung_usbphy *sphy)
> +{
> +       void __iomem *regs = sphy->regs;
> +       u32 phypwr;
> +       u32 phyclk;
> +       u32 rstcon;
> +
> +       /* set clock frequency for PLL */
> +       phyclk = sphy->ref_clk_freq;
> +       phypwr = readl(regs + SAMSUNG_PHYPWR);
> +       rstcon = readl(regs + SAMSUNG_RSTCON);
> +
> +       switch (sphy->cpu_type) {
> +       case TYPE_S3C64XX:
> +               phyclk &= ~PHYCLK_COMMON_ON_N;
> +               phypwr &= ~PHYPWR_NORMAL_MASK;
> +               rstcon |= RSTCON_SWRST;
> +               break;
> +       case TYPE_EXYNOS4210:
> +               phypwr &= ~PHYPWR_NORMAL_MASK_PHY0;
> +               rstcon |= RSTCON_SWRST;
> +       default:
> +               break;
> +       }
> +
> +       writel(phyclk, regs + SAMSUNG_PHYCLK);
> +       /* set to normal of PHY0 */
> +       writel(phypwr, regs + SAMSUNG_PHYPWR);
> +       /* reset all ports of PHY and Link */
> +       writel(rstcon, regs + SAMSUNG_RSTCON);
> +       udelay(10);
> +       rstcon &= ~RSTCON_SWRST;
> +       writel(rstcon, regs + SAMSUNG_RSTCON);
> +}
> +
> +static void samsung_usbphy_disable(struct samsung_usbphy *sphy)
> +{
> +       void __iomem *regs = sphy->regs;
> +       u32 phypwr;
> +
> +       phypwr = readl(regs + SAMSUNG_PHYPWR);
> +
> +       switch (sphy->cpu_type) {
> +       case TYPE_S3C64XX:
> +               phypwr |= PHYPWR_NORMAL_MASK;
> +               break;
> +       case TYPE_EXYNOS4210:
> +               phypwr |= PHYPWR_NORMAL_MASK_PHY0;
> +       default:
> +               break;
> +       }
> +
> +       /* unset to normal of PHY0 */
> +       writel(phypwr, regs + SAMSUNG_PHYPWR);
> +}
> +
> +/*
> + * The function passed to the usb driver for phy initialization
> + */
> +static int samsung_usbphy_init(struct usb_phy *phy)
> +{
> +       struct samsung_usbphy *sphy;
> +       int ret = 0;
> +
> +       sphy = phy_to_sphy(phy);
> +
> +       /* Enable the phy clock */
> +       ret = clk_prepare_enable(sphy->clk);
> +       if (ret) {
> +               dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
> +               return ret;
> +       }
> +
> +       /* Disable phy isolation */
> +       if (sphy->plat && sphy->plat->pmu_isolation)
> +               sphy->plat->pmu_isolation(false);
> +
> +       /* Initialize usb phy registers */
> +       samsung_usbphy_enable(sphy);
> +
> +       /* Disable the phy clock */
> +       clk_disable_unprepare(sphy->clk);
> +       return ret;
> +}
> +
> +/*
> + * The function passed to the usb driver for phy shutdown
> + */
> +static void samsung_usbphy_shutdown(struct usb_phy *phy)
> +{
> +       struct samsung_usbphy *sphy;
> +
> +       sphy = phy_to_sphy(phy);
> +
> +       if (clk_prepare_enable(sphy->clk)) {
> +               dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__);
> +               return;
> +       }
> +
> +       /* De-initialize usb phy registers */
> +       samsung_usbphy_disable(sphy);
> +
> +       /* Enable phy isolation */
> +       if (sphy->plat && sphy->plat->pmu_isolation)
> +               sphy->plat->pmu_isolation(true);
> +
> +       clk_disable_unprepare(sphy->clk);
> +}
> +
> +static const struct of_device_id samsung_usbphy_dt_match[];
> +
> +static inline int samsung_usbphy_get_driver_data(struct platform_device *pdev)
> +{
> +       if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
> +               int data;
> +               const struct of_device_id *match;
> +               match = of_match_node(samsung_usbphy_dt_match,
> +                                                       pdev->dev.of_node);
> +               data = (int) match->data;
> +               return data;
> +       }
> +
> +       return platform_get_device_id(pdev)->driver_data;
> +}
> +
> +static int __devinit samsung_usbphy_probe(struct platform_device *pdev)
> +{
> +       struct samsung_usbphy *sphy;
> +       struct samsung_usbphy_data *pdata;
> +       struct device *dev = &pdev->dev;
> +       struct resource *phy_mem;
> +       void __iomem    *phy_base;
> +       struct clk *clk;
> +       int     ret = 0;
> +
> +       pdata = pdev->dev.platform_data;
> +       if (!pdata) {
> +               dev_err(&pdev->dev, "%s: no platform data defined\n", __func__);
> +               return -EINVAL;
> +       }
> +
> +       phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +       if (!phy_mem) {
> +               dev_err(dev, "%s: missing mem resource\n", __func__);
> +               return -ENODEV;
> +       }
> +
> +       phy_base = devm_request_and_ioremap(dev, phy_mem);
> +       if (!phy_base) {
> +               dev_err(dev, "%s: register mapping failed\n", __func__);
> +               return -ENXIO;
> +       }
> +
> +       sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL);
> +       if (!sphy)
> +               return -ENOMEM;
> +
> +       clk = devm_clk_get(dev, "otg");
> +       if (IS_ERR(clk)) {
> +               dev_err(dev, "Failed to get otg clock\n");
> +               return PTR_ERR(clk);
> +       }
> +
> +       sphy->dev               = &pdev->dev;
> +       sphy->plat              = pdata;
> +       sphy->regs              = phy_base;
> +       sphy->clk               = clk;
> +       sphy->phy.dev           = sphy->dev;
> +       sphy->phy.label         = "samsung-usbphy";
> +       sphy->phy.init          = samsung_usbphy_init;
> +       sphy->phy.shutdown      = samsung_usbphy_shutdown;
> +       sphy->cpu_type          = samsung_usbphy_get_driver_data(pdev);
> +       sphy->ref_clk_freq      = samsung_usbphy_get_refclk_freq(sphy);
> +
> +       platform_set_drvdata(pdev, sphy);
> +
> +       ret = usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2);
> +       return ret;
> +}
> +
> +static int __exit samsung_usbphy_remove(struct platform_device *pdev)
> +{
> +       struct samsung_usbphy *sphy = platform_get_drvdata(pdev);
> +
> +       usb_remove_phy(&sphy->phy);
> +
> +       return 0;
> +}
> +
> +#ifdef CONFIG_OF
> +static const struct of_device_id samsung_usbphy_dt_match[] = {
> +       {
> +               .compatible = "samsung,s3c64xx-usbphy",
> +               .data = (void *)TYPE_S3C64XX,
> +       }, {
> +               .compatible = "samsung,exynos4210-usbphy",
> +               .data = (void *)TYPE_EXYNOS4210,
> +       },
> +       {},
> +};
> +MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match);
> +#else
> +#define samsung_usbphy_dt_match NULL
> +#endif
> +
> +static struct platform_device_id samsung_usbphy_driver_ids[] = {
> +       {
> +               .name           = "s3c64xx-usbphy",
> +               .driver_data    = TYPE_S3C64XX,
> +       }, {
> +               .name           = "exynos4210-usbphy",
> +               .driver_data    = TYPE_EXYNOS4210,
> +       },
> +       {},
> +};
> +
> +MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids);
> +
> +static struct platform_driver samsung_usbphy_driver = {
> +       .probe          = samsung_usbphy_probe,
> +       .remove         = __devexit_p(samsung_usbphy_remove),
> +       .id_table       = samsung_usbphy_driver_ids,
> +       .driver         = {
> +               .name   = "samsung-usbphy",
> +               .owner  = THIS_MODULE,
> +               .of_match_table = samsung_usbphy_dt_match,
> +       },
> +};
> +
> +module_platform_driver(samsung_usbphy_driver);
> +
> +MODULE_DESCRIPTION("Samsung USB phy controller");
> +MODULE_AUTHOR("Praveen Paneri <p.paneri@samsung.com>");
> +MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:samsung-usbphy");
> diff --git a/include/linux/platform_data/samsung-usbphy.h b/include/linux/platform_data/samsung-usbphy.h
> new file mode 100644
> index 0000000..1bd24cb
> --- /dev/null
> +++ b/include/linux/platform_data/samsung-usbphy.h
> @@ -0,0 +1,27 @@
> +/*
> + * Copyright (C) 2012 Samsung Electronics Co.Ltd
> + *             http://www.samsung.com/
> + * Author: Praveen Paneri <p.paneri@samsung.com>
> + *
> + * Defines platform data for samsung usb phy driver.
> + *
> + * This program is free software; you can redistribute  it and/or modify it
> + * under  the terms of  the GNU General  Public License as published by the
> + * Free Software Foundation;  either version 2 of the  License, or (at your
> + * option) any later version.
> + */
> +
> +#ifndef __SAMSUNG_USBPHY_PLATFORM_H
> +#define __SAMSUNG_USBPHY_PLATFORM_H
> +
> +/**
> + * samsung_usbphy_data - Platform data for USB PHY driver.
> + * @pmu_isolation: Function to control usb phy isolation in PMU.
> + */
> +struct samsung_usbphy_data {
> +       void (*pmu_isolation)(int on);
> +};
> +
> +extern void samsung_usbphy_set_pdata(struct samsung_usbphy_data *pd);
> +
> +#endif /* __SAMSUNG_USBPHY_PLATFORM_H */
> --
> 1.7.1
>
> --
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> the body of a message to majordomo at vger.kernel.org
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--
Thanks & Regards
Vivek

Re: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 2348 bytes --]

Hi,

On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
> Changes from v6:
> Modified register definitions according to the existing ones.
> Changed default PHY clk selection for SoCs.
> Improved binding text and rebased to the latest usb-next.
> 
> Changes from v5:
> Moved clk_get() to driver's probe function. Now reference clock frequency
> selection value is stored in samsung_usbphy structure for later use. Used
> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
> 
> Changes from v4:
> Moved header file contents to driver's source file
> Removed unnecessary print message from driver's probe function
> Dropped the Free Software Foundation address from the header
> Changed the platform data code to use __initdata
> 
> Changes from v3:
> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
> is registered
> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
> 
> Changes from v2:
> Changed the driver filenames to samsung-usbphy
> Changed 's3c' to 'samsung' for platform device as well as platform data
> Moved platform data structure to a separate file
> Rectified coding style related errors
> 
> Changes from v1:
> Rebased patches to latest usb-next branch
> Changed the name 'sec_usbphy' to 'samsung_usbphy'
> 
> This patch set introduces a phy driver for samsung SoCs. It uses the existing
> transceiver infrastructure to provide phy control functions. Use of this driver
> can be extended for usb host phy as well. Over the period of time all the phy
> related code for most of the samsung SoCs can be integrated here.
> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
> when they start supporting this phy driver. 
> This driver is tested with smdk6410 and Exynos4210(with DT).
> 
> Praveen Paneri (5):
>   usb: phy: samsung: Introducing usb phy driver for hsotg
>   usb: s3c-hsotg: Adding phy driver support
>   ARM: S3C64XX: Removing old phy setup code
>   ARM: S3C64XX: Enabling samsung-usbphy driver
>   ARM: Exynos4210: Enabling samsung-usbphy driver

guys I can't wait any longer. If I don't get proper Acks today, I will
go ahead without all the PHY changes from Samsung :-s

-- 
balbi

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Felipe Balbi]

Hi,

On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
> Changes from v6:
> Modified register definitions according to the existing ones.
> Changed default PHY clk selection for SoCs.
> Improved binding text and rebased to the latest usb-next.
> 
> Changes from v5:
> Moved clk_get() to driver's probe function. Now reference clock frequency
> selection value is stored in samsung_usbphy structure for later use. Used
> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
> 
> Changes from v4:
> Moved header file contents to driver's source file
> Removed unnecessary print message from driver's probe function
> Dropped the Free Software Foundation address from the header
> Changed the platform data code to use __initdata
> 
> Changes from v3:
> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
> is registered
> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
> 
> Changes from v2:
> Changed the driver filenames to samsung-usbphy
> Changed 's3c' to 'samsung' for platform device as well as platform data
> Moved platform data structure to a separate file
> Rectified coding style related errors
> 
> Changes from v1:
> Rebased patches to latest usb-next branch
> Changed the name 'sec_usbphy' to 'samsung_usbphy'
> 
> This patch set introduces a phy driver for samsung SoCs. It uses the existing
> transceiver infrastructure to provide phy control functions. Use of this driver
> can be extended for usb host phy as well. Over the period of time all the phy
> related code for most of the samsung SoCs can be integrated here.
> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
> when they start supporting this phy driver. 
> This driver is tested with smdk6410 and Exynos4210(with DT).
> 
> Praveen Paneri (5):
>   usb: phy: samsung: Introducing usb phy driver for hsotg
>   usb: s3c-hsotg: Adding phy driver support
>   ARM: S3C64XX: Removing old phy setup code
>   ARM: S3C64XX: Enabling samsung-usbphy driver
>   ARM: Exynos4210: Enabling samsung-usbphy driver

guys I can't wait any longer. If I don't get proper Acks today, I will
go ahead without all the PHY changes from Samsung :-s

-- 
balbi
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Re: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi Kukjin,

On Fri, Nov 9, 2012 at 5:24 PM, Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org> wrote:
> Hi,
>
> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
>> Changes from v6:
>> Modified register definitions according to the existing ones.
>> Changed default PHY clk selection for SoCs.
>> Improved binding text and rebased to the latest usb-next.
>>
>> Changes from v5:
>> Moved clk_get() to driver's probe function. Now reference clock frequency
>> selection value is stored in samsung_usbphy structure for later use. Used
>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
>>
>> Changes from v4:
>> Moved header file contents to driver's source file
>> Removed unnecessary print message from driver's probe function
>> Dropped the Free Software Foundation address from the header
>> Changed the platform data code to use __initdata
>>
>> Changes from v3:
>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
>> is registered
>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
>>
>> Changes from v2:
>> Changed the driver filenames to samsung-usbphy
>> Changed 's3c' to 'samsung' for platform device as well as platform data
>> Moved platform data structure to a separate file
>> Rectified coding style related errors
>>
>> Changes from v1:
>> Rebased patches to latest usb-next branch
>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
>>
>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
>> transceiver infrastructure to provide phy control functions. Use of this driver
>> can be extended for usb host phy as well. Over the period of time all the phy
>> related code for most of the samsung SoCs can be integrated here.
>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
>> when they start supporting this phy driver.
>> This driver is tested with smdk6410 and Exynos4210(with DT).
>>
>> Praveen Paneri (5):
>>   usb: phy: samsung: Introducing usb phy driver for hsotg
>>   usb: s3c-hsotg: Adding phy driver support
>>   ARM: S3C64XX: Removing old phy setup code
>>   ARM: S3C64XX: Enabling samsung-usbphy driver
>>   ARM: Exynos4210: Enabling samsung-usbphy driver
>
> guys I can't wait any longer. If I don't get proper Acks today, I will
> go ahead without all the PHY changes from Samsung :-s

Can you please ack this patch series.

Thanks,

Praveen
>
> --
> balbi
--
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[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi Kukjin,

On Fri, Nov 9, 2012 at 5:24 PM, Felipe Balbi <balbi@ti.com> wrote:
> Hi,
>
> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
>> Changes from v6:
>> Modified register definitions according to the existing ones.
>> Changed default PHY clk selection for SoCs.
>> Improved binding text and rebased to the latest usb-next.
>>
>> Changes from v5:
>> Moved clk_get() to driver's probe function. Now reference clock frequency
>> selection value is stored in samsung_usbphy structure for later use. Used
>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
>>
>> Changes from v4:
>> Moved header file contents to driver's source file
>> Removed unnecessary print message from driver's probe function
>> Dropped the Free Software Foundation address from the header
>> Changed the platform data code to use __initdata
>>
>> Changes from v3:
>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
>> is registered
>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
>>
>> Changes from v2:
>> Changed the driver filenames to samsung-usbphy
>> Changed 's3c' to 'samsung' for platform device as well as platform data
>> Moved platform data structure to a separate file
>> Rectified coding style related errors
>>
>> Changes from v1:
>> Rebased patches to latest usb-next branch
>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
>>
>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
>> transceiver infrastructure to provide phy control functions. Use of this driver
>> can be extended for usb host phy as well. Over the period of time all the phy
>> related code for most of the samsung SoCs can be integrated here.
>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
>> when they start supporting this phy driver.
>> This driver is tested with smdk6410 and Exynos4210(with DT).
>>
>> Praveen Paneri (5):
>>   usb: phy: samsung: Introducing usb phy driver for hsotg
>>   usb: s3c-hsotg: Adding phy driver support
>>   ARM: S3C64XX: Removing old phy setup code
>>   ARM: S3C64XX: Enabling samsung-usbphy driver
>>   ARM: Exynos4210: Enabling samsung-usbphy driver
>
> guys I can't wait any longer. If I don't get proper Acks today, I will
> go ahead without all the PHY changes from Samsung :-s

Can you please ack this patch series.

Thanks,

Praveen
>
> --
> balbi

Re: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Kyungmin Park]

On Fri, Nov 9, 2012 at 8:54 PM, Felipe Balbi <balbi@ti.com> wrote:
> Hi,
>
> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
>> Changes from v6:
>> Modified register definitions according to the existing ones.
>> Changed default PHY clk selection for SoCs.
>> Improved binding text and rebased to the latest usb-next.
>>
>> Changes from v5:
>> Moved clk_get() to driver's probe function. Now reference clock frequency
>> selection value is stored in samsung_usbphy structure for later use. Used
>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
>>
>> Changes from v4:
>> Moved header file contents to driver's source file
>> Removed unnecessary print message from driver's probe function
>> Dropped the Free Software Foundation address from the header
>> Changed the platform data code to use __initdata
>>
>> Changes from v3:
>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
>> is registered
>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
>>
>> Changes from v2:
>> Changed the driver filenames to samsung-usbphy
>> Changed 's3c' to 'samsung' for platform device as well as platform data
>> Moved platform data structure to a separate file
>> Rectified coding style related errors
>>
>> Changes from v1:
>> Rebased patches to latest usb-next branch
>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
>>
>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
>> transceiver infrastructure to provide phy control functions. Use of this driver
>> can be extended for usb host phy as well. Over the period of time all the phy
>> related code for most of the samsung SoCs can be integrated here.
>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
>> when they start supporting this phy driver.
>> This driver is tested with smdk6410 and Exynos4210(with DT).
>>
>> Praveen Paneri (5):
>>   usb: phy: samsung: Introducing usb phy driver for hsotg
>>   usb: s3c-hsotg: Adding phy driver support
For usb parts:
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>

>>   ARM: S3C64XX: Removing old phy setup code
>>   ARM: S3C64XX: Enabling samsung-usbphy driver
>>   ARM: Exynos4210: Enabling samsung-usbphy driver
>
> guys I can't wait any longer. If I don't get proper Acks today, I will
> go ahead without all the PHY changes from Samsung :-s

To Praveen,

To remove these dependency and merge issue, please send patches for
each subsystem. In this case, usb patches for usb tree and others are
for arm arch.

Thank you,
Kyungmin Park
>
> --
> balbi
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>

[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Kyungmin Park]

On Fri, Nov 9, 2012 at 8:54 PM, Felipe Balbi <balbi@ti.com> wrote:
> Hi,
>
> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
>> Changes from v6:
>> Modified register definitions according to the existing ones.
>> Changed default PHY clk selection for SoCs.
>> Improved binding text and rebased to the latest usb-next.
>>
>> Changes from v5:
>> Moved clk_get() to driver's probe function. Now reference clock frequency
>> selection value is stored in samsung_usbphy structure for later use. Used
>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
>>
>> Changes from v4:
>> Moved header file contents to driver's source file
>> Removed unnecessary print message from driver's probe function
>> Dropped the Free Software Foundation address from the header
>> Changed the platform data code to use __initdata
>>
>> Changes from v3:
>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
>> is registered
>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
>>
>> Changes from v2:
>> Changed the driver filenames to samsung-usbphy
>> Changed 's3c' to 'samsung' for platform device as well as platform data
>> Moved platform data structure to a separate file
>> Rectified coding style related errors
>>
>> Changes from v1:
>> Rebased patches to latest usb-next branch
>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
>>
>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
>> transceiver infrastructure to provide phy control functions. Use of this driver
>> can be extended for usb host phy as well. Over the period of time all the phy
>> related code for most of the samsung SoCs can be integrated here.
>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
>> when they start supporting this phy driver.
>> This driver is tested with smdk6410 and Exynos4210(with DT).
>>
>> Praveen Paneri (5):
>>   usb: phy: samsung: Introducing usb phy driver for hsotg
>>   usb: s3c-hsotg: Adding phy driver support
For usb parts:
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>

>>   ARM: S3C64XX: Removing old phy setup code
>>   ARM: S3C64XX: Enabling samsung-usbphy driver
>>   ARM: Exynos4210: Enabling samsung-usbphy driver
>
> guys I can't wait any longer. If I don't get proper Acks today, I will
> go ahead without all the PHY changes from Samsung :-s

To Praveen,

To remove these dependency and merge issue, please send patches for
each subsystem. In this case, usb patches for usb tree and others are
for arm arch.

Thank you,
Kyungmin Park
>
> --
> balbi
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>

Re: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi,

On Fri, Nov 9, 2012 at 6:06 PM, Kyungmin Park <kmpark-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org> wrote:
> On Fri, Nov 9, 2012 at 8:54 PM, Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org> wrote:
>> Hi,
>>
>> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
>>> Changes from v6:
>>> Modified register definitions according to the existing ones.
>>> Changed default PHY clk selection for SoCs.
>>> Improved binding text and rebased to the latest usb-next.
>>>
>>> Changes from v5:
>>> Moved clk_get() to driver's probe function. Now reference clock frequency
>>> selection value is stored in samsung_usbphy structure for later use. Used
>>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
>>>
>>> Changes from v4:
>>> Moved header file contents to driver's source file
>>> Removed unnecessary print message from driver's probe function
>>> Dropped the Free Software Foundation address from the header
>>> Changed the platform data code to use __initdata
>>>
>>> Changes from v3:
>>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
>>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
>>> is registered
>>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
>>>
>>> Changes from v2:
>>> Changed the driver filenames to samsung-usbphy
>>> Changed 's3c' to 'samsung' for platform device as well as platform data
>>> Moved platform data structure to a separate file
>>> Rectified coding style related errors
>>>
>>> Changes from v1:
>>> Rebased patches to latest usb-next branch
>>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
>>>
>>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
>>> transceiver infrastructure to provide phy control functions. Use of this driver
>>> can be extended for usb host phy as well. Over the period of time all the phy
>>> related code for most of the samsung SoCs can be integrated here.
>>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
>>> when they start supporting this phy driver.
>>> This driver is tested with smdk6410 and Exynos4210(with DT).
>>>
>>> Praveen Paneri (5):
>>>   usb: phy: samsung: Introducing usb phy driver for hsotg
>>>   usb: s3c-hsotg: Adding phy driver support
> For usb parts:
> Acked-by: Kyungmin Park <kyungmin.park-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Thanks for the ack.
>
>>>   ARM: S3C64XX: Removing old phy setup code
>>>   ARM: S3C64XX: Enabling samsung-usbphy driver
>>>   ARM: Exynos4210: Enabling samsung-usbphy driver
>>
>> guys I can't wait any longer. If I don't get proper Acks today, I will
>> go ahead without all the PHY changes from Samsung :-s
>
> To Praveen,
>
> To remove these dependency and merge issue, please send patches for
> each subsystem. In this case, usb patches for usb tree and others are
> for arm arch.
I will surely take care of this from now onwards. Hope these can be
taken as it is for now.

Thanks,
Praveen
>
> Thank you,
> Kyungmin Park
>>
>> --
>> balbi
>>
>> _______________________________________________
>> linux-arm-kernel mailing list
>> linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-usb" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
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[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi,

On Fri, Nov 9, 2012 at 6:06 PM, Kyungmin Park <kmpark@infradead.org> wrote:
> On Fri, Nov 9, 2012 at 8:54 PM, Felipe Balbi <balbi@ti.com> wrote:
>> Hi,
>>
>> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
>>> Changes from v6:
>>> Modified register definitions according to the existing ones.
>>> Changed default PHY clk selection for SoCs.
>>> Improved binding text and rebased to the latest usb-next.
>>>
>>> Changes from v5:
>>> Moved clk_get() to driver's probe function. Now reference clock frequency
>>> selection value is stored in samsung_usbphy structure for later use. Used
>>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
>>>
>>> Changes from v4:
>>> Moved header file contents to driver's source file
>>> Removed unnecessary print message from driver's probe function
>>> Dropped the Free Software Foundation address from the header
>>> Changed the platform data code to use __initdata
>>>
>>> Changes from v3:
>>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
>>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
>>> is registered
>>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
>>>
>>> Changes from v2:
>>> Changed the driver filenames to samsung-usbphy
>>> Changed 's3c' to 'samsung' for platform device as well as platform data
>>> Moved platform data structure to a separate file
>>> Rectified coding style related errors
>>>
>>> Changes from v1:
>>> Rebased patches to latest usb-next branch
>>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
>>>
>>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
>>> transceiver infrastructure to provide phy control functions. Use of this driver
>>> can be extended for usb host phy as well. Over the period of time all the phy
>>> related code for most of the samsung SoCs can be integrated here.
>>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
>>> when they start supporting this phy driver.
>>> This driver is tested with smdk6410 and Exynos4210(with DT).
>>>
>>> Praveen Paneri (5):
>>>   usb: phy: samsung: Introducing usb phy driver for hsotg
>>>   usb: s3c-hsotg: Adding phy driver support
> For usb parts:
> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Thanks for the ack.
>
>>>   ARM: S3C64XX: Removing old phy setup code
>>>   ARM: S3C64XX: Enabling samsung-usbphy driver
>>>   ARM: Exynos4210: Enabling samsung-usbphy driver
>>
>> guys I can't wait any longer. If I don't get proper Acks today, I will
>> go ahead without all the PHY changes from Samsung :-s
>
> To Praveen,
>
> To remove these dependency and merge issue, please send patches for
> each subsystem. In this case, usb patches for usb tree and others are
> for arm arch.
I will surely take care of this from now onwards. Hope these can be
taken as it is for now.

Thanks,
Praveen
>
> Thank you,
> Kyungmin Park
>>
>> --
>> balbi
>>
>> _______________________________________________
>> linux-arm-kernel mailing list
>> linux-arm-kernel at lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-usb" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 3289 bytes --]

Hi,

On Fri, Nov 09, 2012 at 06:50:44PM +0530, Praveen Paneri wrote:
> Hi,
> 
> On Fri, Nov 9, 2012 at 6:06 PM, Kyungmin Park <kmpark@infradead.org> wrote:
> > On Fri, Nov 9, 2012 at 8:54 PM, Felipe Balbi <balbi@ti.com> wrote:
> >> Hi,
> >>
> >> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
> >>> Changes from v6:
> >>> Modified register definitions according to the existing ones.
> >>> Changed default PHY clk selection for SoCs.
> >>> Improved binding text and rebased to the latest usb-next.
> >>>
> >>> Changes from v5:
> >>> Moved clk_get() to driver's probe function. Now reference clock frequency
> >>> selection value is stored in samsung_usbphy structure for later use. Used
> >>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
> >>>
> >>> Changes from v4:
> >>> Moved header file contents to driver's source file
> >>> Removed unnecessary print message from driver's probe function
> >>> Dropped the Free Software Foundation address from the header
> >>> Changed the platform data code to use __initdata
> >>>
> >>> Changes from v3:
> >>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
> >>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
> >>> is registered
> >>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
> >>>
> >>> Changes from v2:
> >>> Changed the driver filenames to samsung-usbphy
> >>> Changed 's3c' to 'samsung' for platform device as well as platform data
> >>> Moved platform data structure to a separate file
> >>> Rectified coding style related errors
> >>>
> >>> Changes from v1:
> >>> Rebased patches to latest usb-next branch
> >>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
> >>>
> >>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
> >>> transceiver infrastructure to provide phy control functions. Use of this driver
> >>> can be extended for usb host phy as well. Over the period of time all the phy
> >>> related code for most of the samsung SoCs can be integrated here.
> >>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
> >>> when they start supporting this phy driver.
> >>> This driver is tested with smdk6410 and Exynos4210(with DT).
> >>>
> >>> Praveen Paneri (5):
> >>>   usb: phy: samsung: Introducing usb phy driver for hsotg
> >>>   usb: s3c-hsotg: Adding phy driver support
> > For usb parts:
> > Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
> Thanks for the ack.
> >
> >>>   ARM: S3C64XX: Removing old phy setup code
> >>>   ARM: S3C64XX: Enabling samsung-usbphy driver
> >>>   ARM: Exynos4210: Enabling samsung-usbphy driver
> >>
> >> guys I can't wait any longer. If I don't get proper Acks today, I will
> >> go ahead without all the PHY changes from Samsung :-s
> >
> > To Praveen,
> >
> > To remove these dependency and merge issue, please send patches for
> > each subsystem. In this case, usb patches for usb tree and others are
> > for arm arch.
> I will surely take care of this from now onwards. Hope these can be
> taken as it is for now.

Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
and arch/arm/mach-exynos part.

-- 
balbi

[-- Attachment #2: Digital signature --]
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[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Felipe Balbi]

Hi,

On Fri, Nov 09, 2012 at 06:50:44PM +0530, Praveen Paneri wrote:
> Hi,
> 
> On Fri, Nov 9, 2012 at 6:06 PM, Kyungmin Park <kmpark@infradead.org> wrote:
> > On Fri, Nov 9, 2012 at 8:54 PM, Felipe Balbi <balbi@ti.com> wrote:
> >> Hi,
> >>
> >> On Tue, Oct 30, 2012 at 10:27:32AM +0530, Praveen Paneri wrote:
> >>> Changes from v6:
> >>> Modified register definitions according to the existing ones.
> >>> Changed default PHY clk selection for SoCs.
> >>> Improved binding text and rebased to the latest usb-next.
> >>>
> >>> Changes from v5:
> >>> Moved clk_get() to driver's probe function. Now reference clock frequency
> >>> selection value is stored in samsung_usbphy structure for later use. Used
> >>> IS_ENABLED() instead of #ifdef in samsung_usbphy_get_driver_data().
> >>>
> >>> Changes from v4:
> >>> Moved header file contents to driver's source file
> >>> Removed unnecessary print message from driver's probe function
> >>> Dropped the Free Software Foundation address from the header
> >>> Changed the platform data code to use __initdata
> >>>
> >>> Changes from v3:
> >>> Replaced susbsys_initcall()/module_exit() by module_platform_driver().
> >>> Accordingly in the hsotg driver returned -EPROBE_DEFER until phy driver
> >>> is registered
> >>> Removed unnecessary devm_usb_put_phy() call from the hsotg driver remove.
> >>>
> >>> Changes from v2:
> >>> Changed the driver filenames to samsung-usbphy
> >>> Changed 's3c' to 'samsung' for platform device as well as platform data
> >>> Moved platform data structure to a separate file
> >>> Rectified coding style related errors
> >>>
> >>> Changes from v1:
> >>> Rebased patches to latest usb-next branch
> >>> Changed the name 'sec_usbphy' to 'samsung_usbphy'
> >>>
> >>> This patch set introduces a phy driver for samsung SoCs. It uses the existing
> >>> transceiver infrastructure to provide phy control functions. Use of this driver
> >>> can be extended for usb host phy as well. Over the period of time all the phy
> >>> related code for most of the samsung SoCs can be integrated here.
> >>> Removing the existing phy code from mach-s3c64xx. Same can be done for other SoCs
> >>> when they start supporting this phy driver.
> >>> This driver is tested with smdk6410 and Exynos4210(with DT).
> >>>
> >>> Praveen Paneri (5):
> >>>   usb: phy: samsung: Introducing usb phy driver for hsotg
> >>>   usb: s3c-hsotg: Adding phy driver support
> > For usb parts:
> > Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
> Thanks for the ack.
> >
> >>>   ARM: S3C64XX: Removing old phy setup code
> >>>   ARM: S3C64XX: Enabling samsung-usbphy driver
> >>>   ARM: Exynos4210: Enabling samsung-usbphy driver
> >>
> >> guys I can't wait any longer. If I don't get proper Acks today, I will
> >> go ahead without all the PHY changes from Samsung :-s
> >
> > To Praveen,
> >
> > To remove these dependency and merge issue, please send patches for
> > each subsystem. In this case, usb patches for usb tree and others are
> > for arm arch.
> I will surely take care of this from now onwards. Hope these can be
> taken as it is for now.

Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
and arch/arm/mach-exynos part.

-- 
balbi
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RE: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Kukjin Kim]

Felipe Balbi wrote:
> 
> Hi,
> 
Hi :-)

[...]

> Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
> and arch/arm/mach-exynos part.
> 
Basically, this approach looks OK to me.

BTW, I have some comments and need to update...

>From 4th patch...

> diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-
> s3c64xx/mach-smdk6410.c

[...]

> @@ -72,6 +73,8 @@
>  #include <linux/platform_data/touchscreen-s3c2410.h>
>  #include <plat/keypad.h>
>  #include <plat/backlight.h>
> +#include <plat/regs-fb-v4.h>

Why? In addition, this causes build error with s3c6400_defconfig.

[...]

> diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
> index 03f654d..9cdb666 100644

[...]

> @@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
> 
>  /* USB */
> 
> +#ifdef CONFIG_S3C_DEV_USB_HSOTG
> +/* USB PHY*/
> +static struct resource samsung_usbphy_resource[] = {
> +	[0] = {
> +		.start = S3C_PA_USB_PHY,
> +		.end   = S3C_PA_USB_PHY + SZ_16 - 1,
> +		.flags = IORESOURCE_MEM,
> +	},
> +};

+static struct resource samsung_usbphy_resource[] = {
+	[0] = DEFINED_RES_MEM(S3C_PA_USB_PHY, SZ_16),
+};

[...]

Happens build error with s5pv210_defconfig

arch/arm/plat-samsung/devs.c:1375: error: 'S3C_PA_USB_PHY' undeclared here
(not in a function)
make[2]: *** [arch/arm/plat-samsung/devs.o] Error 1
make[1]: *** [arch/arm/plat-samsung] Error 2
make[1]: *** Waiting for unfinished jobs....

And another build error with exynos_defconfig...

arch/arm/mach-exynos/built-in.o: In function `.LANCHOR1':
setup-i2c0.c:(.data+0x8080): undefined reference to
`s5p_usb_phy_pmu_isolation'

>From 5th patch....

If possible, please to use 'ARM: [sub-arch dir name]: [subject]' format.
So I preferred to use 'ARM: EXYNOS: Enabling samsung-usbphy driver for
EXYNOS4210' on that.

Please make sure your patch has no problem for kernel compilation before
submitting...

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Kukjin Kim]

Felipe Balbi wrote:
> 
> Hi,
> 
Hi :-)

[...]

> Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
> and arch/arm/mach-exynos part.
> 
Basically, this approach looks OK to me.

BTW, I have some comments and need to update...

>From 4th patch...

> diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-
> s3c64xx/mach-smdk6410.c

[...]

> @@ -72,6 +73,8 @@
>  #include <linux/platform_data/touchscreen-s3c2410.h>
>  #include <plat/keypad.h>
>  #include <plat/backlight.h>
> +#include <plat/regs-fb-v4.h>

Why? In addition, this causes build error with s3c6400_defconfig.

[...]

> diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
> index 03f654d..9cdb666 100644

[...]

> @@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
> 
>  /* USB */
> 
> +#ifdef CONFIG_S3C_DEV_USB_HSOTG
> +/* USB PHY*/
> +static struct resource samsung_usbphy_resource[] = {
> +	[0] = {
> +		.start = S3C_PA_USB_PHY,
> +		.end   = S3C_PA_USB_PHY + SZ_16 - 1,
> +		.flags = IORESOURCE_MEM,
> +	},
> +};

+static struct resource samsung_usbphy_resource[] = {
+	[0] = DEFINED_RES_MEM(S3C_PA_USB_PHY, SZ_16),
+};

[...]

Happens build error with s5pv210_defconfig

arch/arm/plat-samsung/devs.c:1375: error: 'S3C_PA_USB_PHY' undeclared here
(not in a function)
make[2]: *** [arch/arm/plat-samsung/devs.o] Error 1
make[1]: *** [arch/arm/plat-samsung] Error 2
make[1]: *** Waiting for unfinished jobs....

And another build error with exynos_defconfig...

arch/arm/mach-exynos/built-in.o: In function `.LANCHOR1':
setup-i2c0.c:(.data+0x8080): undefined reference to
`s5p_usb_phy_pmu_isolation'

>From 5th patch....

If possible, please to use 'ARM: [sub-arch dir name]: [subject]' format.
So I preferred to use 'ARM: EXYNOS: Enabling samsung-usbphy driver for
EXYNOS4210' on that.

Please make sure your patch has no problem for kernel compilation before
submitting...

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

Re: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi,

On Mon, Nov 12, 2012 at 10:11 AM, Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote:
> Felipe Balbi wrote:
>>
>> Hi,
>>
> Hi :-)
>
> [...]
>
>> Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
>> and arch/arm/mach-exynos part.
>>
> Basically, this approach looks OK to me.
>
> BTW, I have some comments and need to update...
Thanks! I highly appreciate your comments. It would have been even
better if I had got these before the closing bell.
>
> From 4th patch...
>
>> diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-
>> s3c64xx/mach-smdk6410.c
>
> [...]
>
>> @@ -72,6 +73,8 @@
>>  #include <linux/platform_data/touchscreen-s3c2410.h>
>>  #include <plat/keypad.h>
>>  #include <plat/backlight.h>
>> +#include <plat/regs-fb-v4.h>
Well it comes from an older state where without this it was giving a
build error. Although it shouldn't have been here. Will fix it.
>
> Why? In addition, this causes build error with s3c6400_defconfig.
>
> [...]
>
>> diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
>> index 03f654d..9cdb666 100644
>
> [...]
>
>> @@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
>>
>>  /* USB */
>>
>> +#ifdef CONFIG_S3C_DEV_USB_HSOTG
>> +/* USB PHY*/
>> +static struct resource samsung_usbphy_resource[] = {
>> +     [0] = {
>> +             .start = S3C_PA_USB_PHY,
>> +             .end   = S3C_PA_USB_PHY + SZ_16 - 1,
>> +             .flags = IORESOURCE_MEM,
>> +     },
>> +};
>
> +static struct resource samsung_usbphy_resource[] = {
> +       [0] = DEFINED_RES_MEM(S3C_PA_USB_PHY, SZ_16),
> +};
>
> [...]
>
> Happens build error with s5pv210_defconfig
>
> arch/arm/plat-samsung/devs.c:1375: error: 'S3C_PA_USB_PHY' undeclared here
> (not in a function)
> make[2]: *** [arch/arm/plat-samsung/devs.o] Error 1
> make[1]: *** [arch/arm/plat-samsung] Error 2
> make[1]: *** Waiting for unfinished jobs....
>
> And another build error with exynos_defconfig...
Will check for both the configs and resolve it.

Thanks,
Praveen
>
> arch/arm/mach-exynos/built-in.o: In function `.LANCHOR1':
> setup-i2c0.c:(.data+0x8080): undefined reference to
> `s5p_usb_phy_pmu_isolation'
>
> From 5th patch....
>
> If possible, please to use 'ARM: [sub-arch dir name]: [subject]' format.
> So I preferred to use 'ARM: EXYNOS: Enabling samsung-usbphy driver for
> EXYNOS4210' on that.
>
> Please make sure your patch has no problem for kernel compilation before
> submitting...
>
> Thanks.
>
> Best regards,
> Kgene.
> --
> Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>, Senior Engineer,
> SW Solution Development Team, Samsung Electronics Co., Ltd.
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
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[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi,

On Mon, Nov 12, 2012 at 10:11 AM, Kukjin Kim <kgene.kim@samsung.com> wrote:
> Felipe Balbi wrote:
>>
>> Hi,
>>
> Hi :-)
>
> [...]
>
>> Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
>> and arch/arm/mach-exynos part.
>>
> Basically, this approach looks OK to me.
>
> BTW, I have some comments and need to update...
Thanks! I highly appreciate your comments. It would have been even
better if I had got these before the closing bell.
>
> From 4th patch...
>
>> diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-
>> s3c64xx/mach-smdk6410.c
>
> [...]
>
>> @@ -72,6 +73,8 @@
>>  #include <linux/platform_data/touchscreen-s3c2410.h>
>>  #include <plat/keypad.h>
>>  #include <plat/backlight.h>
>> +#include <plat/regs-fb-v4.h>
Well it comes from an older state where without this it was giving a
build error. Although it shouldn't have been here. Will fix it.
>
> Why? In addition, this causes build error with s3c6400_defconfig.
>
> [...]
>
>> diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
>> index 03f654d..9cdb666 100644
>
> [...]
>
>> @@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
>>
>>  /* USB */
>>
>> +#ifdef CONFIG_S3C_DEV_USB_HSOTG
>> +/* USB PHY*/
>> +static struct resource samsung_usbphy_resource[] = {
>> +     [0] = {
>> +             .start = S3C_PA_USB_PHY,
>> +             .end   = S3C_PA_USB_PHY + SZ_16 - 1,
>> +             .flags = IORESOURCE_MEM,
>> +     },
>> +};
>
> +static struct resource samsung_usbphy_resource[] = {
> +       [0] = DEFINED_RES_MEM(S3C_PA_USB_PHY, SZ_16),
> +};
>
> [...]
>
> Happens build error with s5pv210_defconfig
>
> arch/arm/plat-samsung/devs.c:1375: error: 'S3C_PA_USB_PHY' undeclared here
> (not in a function)
> make[2]: *** [arch/arm/plat-samsung/devs.o] Error 1
> make[1]: *** [arch/arm/plat-samsung] Error 2
> make[1]: *** Waiting for unfinished jobs....
>
> And another build error with exynos_defconfig...
Will check for both the configs and resolve it.

Thanks,
Praveen
>
> arch/arm/mach-exynos/built-in.o: In function `.LANCHOR1':
> setup-i2c0.c:(.data+0x8080): undefined reference to
> `s5p_usb_phy_pmu_isolation'
>
> From 5th patch....
>
> If possible, please to use 'ARM: [sub-arch dir name]: [subject]' format.
> So I preferred to use 'ARM: EXYNOS: Enabling samsung-usbphy driver for
> EXYNOS4210' on that.
>
> Please make sure your patch has no problem for kernel compilation before
> submitting...
>
> Thanks.
>
> Best regards,
> Kgene.
> --
> Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
> SW Solution Development Team, Samsung Electronics Co., Ltd.
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi Kukjin, Felipe,

Since the issue is only with arch patches, which I am going to resolve
asap, Will it be possible for you to consider taking only driver
patches? I can resend arch patches separately to linux-samsung after
updating if Kukjin is also fine with that?

Thanks,
Praveen

On Wed, Nov 14, 2012 at 9:38 AM, Praveen Paneri <p.paneri-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote:
> Hi,
>
> On Mon, Nov 12, 2012 at 10:11 AM, Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote:
>> Felipe Balbi wrote:
>>>
>>> Hi,
>>>
>> Hi :-)
>>
>> [...]
>>
>>> Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
>>> and arch/arm/mach-exynos part.
>>>
>> Basically, this approach looks OK to me.
>>
>> BTW, I have some comments and need to update...
> Thanks! I highly appreciate your comments. It would have been even
> better if I had got these before the closing bell.
>>
>> From 4th patch...
>>
>>> diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-
>>> s3c64xx/mach-smdk6410.c
>>
>> [...]
>>
>>> @@ -72,6 +73,8 @@
>>>  #include <linux/platform_data/touchscreen-s3c2410.h>
>>>  #include <plat/keypad.h>
>>>  #include <plat/backlight.h>
>>> +#include <plat/regs-fb-v4.h>
> Well it comes from an older state where without this it was giving a
> build error. Although it shouldn't have been here. Will fix it.
>>
>> Why? In addition, this causes build error with s3c6400_defconfig.
>>
>> [...]
>>
>>> diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
>>> index 03f654d..9cdb666 100644
>>
>> [...]
>>
>>> @@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
>>>
>>>  /* USB */
>>>
>>> +#ifdef CONFIG_S3C_DEV_USB_HSOTG
>>> +/* USB PHY*/
>>> +static struct resource samsung_usbphy_resource[] = {
>>> +     [0] = {
>>> +             .start = S3C_PA_USB_PHY,
>>> +             .end   = S3C_PA_USB_PHY + SZ_16 - 1,
>>> +             .flags = IORESOURCE_MEM,
>>> +     },
>>> +};
>>
>> +static struct resource samsung_usbphy_resource[] = {
>> +       [0] = DEFINED_RES_MEM(S3C_PA_USB_PHY, SZ_16),
>> +};
>>
>> [...]
>>
>> Happens build error with s5pv210_defconfig
>>
>> arch/arm/plat-samsung/devs.c:1375: error: 'S3C_PA_USB_PHY' undeclared here
>> (not in a function)
>> make[2]: *** [arch/arm/plat-samsung/devs.o] Error 1
>> make[1]: *** [arch/arm/plat-samsung] Error 2
>> make[1]: *** Waiting for unfinished jobs....
>>
>> And another build error with exynos_defconfig...
> Will check for both the configs and resolve it.
>
> Thanks,
> Praveen
>>
>> arch/arm/mach-exynos/built-in.o: In function `.LANCHOR1':
>> setup-i2c0.c:(.data+0x8080): undefined reference to
>> `s5p_usb_phy_pmu_isolation'
>>
>> From 5th patch....
>>
>> If possible, please to use 'ARM: [sub-arch dir name]: [subject]' format.
>> So I preferred to use 'ARM: EXYNOS: Enabling samsung-usbphy driver for
>> EXYNOS4210' on that.
>>
>> Please make sure your patch has no problem for kernel compilation before
>> submitting...
>>
>> Thanks.
>>
>> Best regards,
>> Kgene.
>> --
>> Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>, Senior Engineer,
>> SW Solution Development Team, Samsung Electronics Co., Ltd.
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
>> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
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[PATCH v7 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

[Praveen Paneri]

Hi Kukjin, Felipe,

Since the issue is only with arch patches, which I am going to resolve
asap, Will it be possible for you to consider taking only driver
patches? I can resend arch patches separately to linux-samsung after
updating if Kukjin is also fine with that?

Thanks,
Praveen

On Wed, Nov 14, 2012 at 9:38 AM, Praveen Paneri <p.paneri@samsung.com> wrote:
> Hi,
>
> On Mon, Nov 12, 2012 at 10:11 AM, Kukjin Kim <kgene.kim@samsung.com> wrote:
>> Felipe Balbi wrote:
>>>
>>> Hi,
>>>
>> Hi :-)
>>
>> [...]
>>
>>> Sure, but I still need Kukjin's 'say-so' for the arch/arm/plat-samsung
>>> and arch/arm/mach-exynos part.
>>>
>> Basically, this approach looks OK to me.
>>
>> BTW, I have some comments and need to update...
> Thanks! I highly appreciate your comments. It would have been even
> better if I had got these before the closing bell.
>>
>> From 4th patch...
>>
>>> diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-
>>> s3c64xx/mach-smdk6410.c
>>
>> [...]
>>
>>> @@ -72,6 +73,8 @@
>>>  #include <linux/platform_data/touchscreen-s3c2410.h>
>>>  #include <plat/keypad.h>
>>>  #include <plat/backlight.h>
>>> +#include <plat/regs-fb-v4.h>
> Well it comes from an older state where without this it was giving a
> build error. Although it shouldn't have been here. Will fix it.
>>
>> Why? In addition, this causes build error with s3c6400_defconfig.
>>
>> [...]
>>
>>> diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
>>> index 03f654d..9cdb666 100644
>>
>> [...]
>>
>>> @@ -1370,6 +1371,30 @@ struct platform_device s5p_device_mixer = {
>>>
>>>  /* USB */
>>>
>>> +#ifdef CONFIG_S3C_DEV_USB_HSOTG
>>> +/* USB PHY*/
>>> +static struct resource samsung_usbphy_resource[] = {
>>> +     [0] = {
>>> +             .start = S3C_PA_USB_PHY,
>>> +             .end   = S3C_PA_USB_PHY + SZ_16 - 1,
>>> +             .flags = IORESOURCE_MEM,
>>> +     },
>>> +};
>>
>> +static struct resource samsung_usbphy_resource[] = {
>> +       [0] = DEFINED_RES_MEM(S3C_PA_USB_PHY, SZ_16),
>> +};
>>
>> [...]
>>
>> Happens build error with s5pv210_defconfig
>>
>> arch/arm/plat-samsung/devs.c:1375: error: 'S3C_PA_USB_PHY' undeclared here
>> (not in a function)
>> make[2]: *** [arch/arm/plat-samsung/devs.o] Error 1
>> make[1]: *** [arch/arm/plat-samsung] Error 2
>> make[1]: *** Waiting for unfinished jobs....
>>
>> And another build error with exynos_defconfig...
> Will check for both the configs and resolve it.
>
> Thanks,
> Praveen
>>
>> arch/arm/mach-exynos/built-in.o: In function `.LANCHOR1':
>> setup-i2c0.c:(.data+0x8080): undefined reference to
>> `s5p_usb_phy_pmu_isolation'
>>
>> From 5th patch....
>>
>> If possible, please to use 'ARM: [sub-arch dir name]: [subject]' format.
>> So I preferred to use 'ARM: EXYNOS: Enabling samsung-usbphy driver for
>> EXYNOS4210' on that.
>>
>> Please make sure your patch has no problem for kernel compilation before
>> submitting...
>>
>> Thanks.
>>
>> Best regards,
>> Kgene.
>> --
>> Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
>> SW Solution Development Team, Samsung Electronics Co., Ltd.
>>
>> --
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